The correct answer is B. Gurmukhi.
Gurmukhi is the script used to write the Punjabi language in India. It is a phonetic script, which means that each letter represents a single sound. Gurmukhi is written from left to right, and words are separated by spaces.
Shahmukhi is another script that is used to write the Punjabi language. It is a Perso-Arabic script, which means that it is based on the Arabic alphabet. Shahmukhi is written from right to left, and words are not separated by spaces.
Devanagari is the script used to write the Hindi language. It is an Indo-Aryan script, which means that it is based on the Sanskrit alphabet. Devanagari is written from left to right, and words are separated by spaces.
Perso-Arabic is a script that is used to write many languages in the Middle East and North Africa. It is based on the Arabic alphabet, and it is written from right to left.
In conclusion, the correct answer to the question “Which script is used to write Punjabi language in India?” is B. Gurmukhi.