The correct answer is A. Mridula Barua.
Mridula Barua is an Indian actress who works in Assamese films. She has won the National Film Award for Best Actress for her performance in the film “Raja” (2015). She is the first Assamese actress to win this award.
Mridula Barua was born in Guwahati, Assam, India. She started her acting career in the early 2000s. She has appeared in over 50 Assamese films. She is known for her roles in films such as “Raja” (2015), “Aamis” (2016), and “Dhanak” (2017).
Mridula Barua is a talented actress who has made a significant contribution to Assamese cinema. She is a role model for aspiring actresses from Assam.
Option B, Dr. Santana Bordoloi, is a doctor and politician from Assam. She is not an actress.
Option C, Moloya Goswami, is a singer and actress from Assam. She has not won the National Film Award for Best Actress.
Option D, None of the above, is also incorrect. Mridula Barua is the first Assamese actress to win the National Film Award for Best Actress.