The ‘Lohia Swachh Bihar Abhiyan’ focuses on:

Cleanliness and sanitation
Irrigation and water management
Infrastructure development
Reforestation

The correct answer is: Cleanliness and sanitation.

The Lohia Swachh Bihar Abhiyan is a cleanliness and sanitation campaign launched by the Government of Bihar in 2016. The campaign aims to make Bihar a clean and open defecation-free state by 2020. The campaign has been successful in making significant progress towards its goals. As of 2019, over 100 million people in Bihar have been provided with access to toilets, and the state has achieved open defecation-free status in over 50% of its districts.

The campaign has been implemented through a combination of awareness-raising, infrastructure development, and community participation. The government has launched a number of awareness campaigns to educate people about the importance of cleanliness and sanitation. It has also built over 10 million toilets in rural areas and provided subsidies to households to build their own toilets. The government has also worked with communities to create and maintain sanitation facilities.

The Lohia Swachh Bihar Abhiyan has been a success in making Bihar a cleaner and healthier state. The campaign has helped to improve the lives of millions of people and has made a significant contribution to the state’s development.

The other options are incorrect because they are not the focus of the Lohia Swachh Bihar Abhiyan. Irrigation and water management is a key issue in Bihar, but it is not the focus of this particular campaign. Infrastructure development is also a priority for the government of Bihar, but it is not the focus of this campaign. Reforestation is an important issue, but it is not the focus of this campaign.