Scenario: Anvil, a private military firm, was founded by Billy Russo to provide military and security services. The company specializes in military contract operations, including personal protection, convoy security, and tactical missions. Project Details: To remain ahead of the technological curve, Billy has integrated Microsoft Azure as a core system for the company. The IT team is working on a project that requires correlation analysis between two specific columns in a dataframe. Question: Which of the following methods is correct for calculating the correlation between two specific columns in a dataframe?