With reference to Nicola Sturgeon's resignation, consider the following statements:

Question

1. Nicola Sturgeon resigned due to personal reasons, including the pandemic.
2. The 2020 U.K. Supreme Court ruling allowed the Scottish Parliament to call for another referendum without Westminster's approval.
3. Ms. Sturgeon proposed using the 2025 U.K. general election as a de facto referendum.
4. Ms. Sturgeon's promise to expand transgender rights was successfully implemented.

 

How many statements given above are correct?

 

(a) Only one statement

(b) Only two statements

(c) Only three statements

(d) All four statements