The correct answer is option B) Ishwar Chandra Vidyasagar.

Ishwar Chandra Vidyasagar was a prominent social reformer, educationist, and intellectual during the 19th century in India. He played a vital role in the development of education in Bengal and made significant contributions to the field of Sanskrit teaching.

**Ishwar Chandra Vidyasagar's Contribution to Sanskrit Teaching:**

**1. Introduction of New Teaching Techniques:**
Ishwar Chandra Vidyasagar introduced a new technique of teaching Sanskrit known as the "Barnaparichay" method. This method aimed to simplify the learning of Sanskrit by breaking down complex grammatical rules into simple and understandable components. It focused on teaching the alphabet and basic grammar rules in a systematic manner, making it easier for students to grasp the language.

**2. Writing of a Bengali Primer:**
To facilitate the learning of Sanskrit, Vidyasagar wrote a Bengali primer titled "Barnaparichay." This primer served as a foundational text for beginners and provided a step-by-step guide to learning the Sanskrit language. It explained the pronunciation, formation, and usage of different letters, words, and sentences. Vidyasagar's Bengali primer is still widely used in schools and educational institutions in Bengal for teaching Sanskrit.

**3. Popularizing Sanskrit Education:**
Vidyasagar believed in promoting Sanskrit education among the masses. He established several schools and colleges that offered Sanskrit as a subject in their curriculum. He emphasized the importance of learning Sanskrit as it provided a strong foundation for understanding Indian culture, literature, and philosophy. Vidyasagar's efforts in popularizing Sanskrit education had a significant impact on the revitalization of Sanskrit studies in Bengal.

In conclusion, Ishwar Chandra Vidyasagar, a renowned social reformer and educationist, evolved a new technique of teaching Sanskrit and wrote a Bengali primer titled "Barnaparichay." This primer simplified the learning of Sanskrit and is still used today in Bengal for teaching the language. Vidyasagar's contributions played a crucial role in the development and popularization of Sanskrit education in Bengal.