How would you best describe Ed's golf performance compared to last week?

The correct choice is highlighted by the words "considerably better today," which suggests a marked improvement in Ed's golf performance this week compared to the previous week. This indicates that there has been a significant positive change in his skills or results on the golf course.

When assessing performance in a competitive or skill-based environment like golf, using "better" clearly conveys an upward trend or enhancement in abilities or outcomes, which is what the question specifically asks about. The context implies a comparison against prior performance with a focus on improvement, making this answer the most appropriate. While "worse," "different," or "the same" refers to various states of performance, they do not capture the positive aspect of improvement that the question seeks to highlight.