Jharkhand focuses on implementing schemes to improve:

Public healthcare
Primary education
Both (a) and (b)
Industrial development

The correct answer is: c) Both (a) and (b).

Jharkhand is a state in eastern India. It is the 14th largest state in India by area and the 10th most populous state. The state is known for its natural beauty, including its forests, hills, and rivers. Jharkhand is also home to a number of important industries, including mining, steel, and power generation.

The state government of Jharkhand has implemented a number of schemes to improve public healthcare and primary education. These schemes include the Mukhyamantri Bal Vikas Yojana (MBVY), which provides free education to children from poor families, and the Mukhyamantri Swasthya Sewa Yojana (MSSY), which provides free healthcare to all citizens of the state.

The MBVY scheme has been successful in increasing enrollment in primary schools in Jharkhand. The scheme has also helped to improve the quality of education in these schools. The MSSY scheme has been successful in providing free healthcare to all citizens of the state. The scheme has helped to improve the health of the people of Jharkhand.

The government of Jharkhand is committed to improving the lives of its citizens. The schemes that have been implemented to improve public healthcare and primary education are a testament to this commitment. These schemes have made a positive impact on the lives of the people of Jharkhand.

Option (a), public healthcare, is correct because the government of Jharkhand has implemented a number of schemes to improve public healthcare. These schemes include the Mukhyamantri Bal Vikas Yojana (MBVY), which provides free education to children from poor families, and the Mukhyamantri Swasthya Sewa Yojana (MSSY), which provides free healthcare to all citizens of the state.

Option (b), primary education, is correct because the government of Jharkhand has implemented a number of schemes to improve primary education. These schemes include the Mukhyamantri Bal Vikas Yojana (MBVY), which provides free education to children from poor families, and the Mukhyamantri Swasthya Sewa Yojana (MSSY), which provides free healthcare to all citizens of the state.

Option (c), both (a) and (b), is the correct answer because the government of Jharkhand has implemented a number of schemes to improve both public healthcare and primary education. These schemes include the Mukhyamantri Bal Vikas Yojana (MBVY), which provides free education to children from poor families, and the Mukhyamantri Swasthya Sewa Yojana (MSSY), which provides free healthcare to all citizens of the state.

Option (d), industrial development, is incorrect because the government of Jharkhand has not implemented a number of schemes to improve industrial development.