Final answer:
For a professionally formatted cover letter, the top margin for the address should be 1 inch for a small envelope and 2 inches for a large envelope, thus the correct answer is option B.
Step-by-step explanation:
When preparing a cover letter for mailing in either a small or large envelope, it's important to set appropriate top margin measurements to ensure the address is positioned correctly. According to standard letter formatting guidelines, the top margin measurements should be as follows:
- Small envelope: 1 inch
- Large envelope: 2 inches
Therefore, the correct answer is B. Small envelope: 1 inch, Large envelope: 2 inches. This spacing provides a professional appearance and ensures the address is visible and not too close to the top of the envelope, which could be obscured when going through postal sorting machines.