The correct answer is option 1, which means that statement 1 is NOT correct.

Statement 1 claims that Ishwarchandra Vidyasagar`s writings significantly helped to develop the Bengali language. However, the correct answer indicates that this statement is not correct.

Let`s analyze the other options:

Option 2 states that statements 1 and 2 are NOT correct. Statement 2 claims that Vidyasagar received the title `vidyasagar` from Presidency College Kolkata. There is no information provided to validate or refute this statement, so it cannot be determined if it is correct or not.

Option 3 states that statement 4 is NOT correct. Statement 4 claims that Vidyasagar defended widow marriage without being convinced about scriptural support. Again, there is no information provided to validate or refute this statement.

Option 4 states that statement 3 is NOT correct. Statement 3 claims that Vidyasagar was enthusiastic about the spread of women`s education. This statement is not contradicted in the answer, so it can be assumed to be correct.

Therefore, the correct answer is option 1, and the explanation confirms that statement 1 is NOT correct.