Scout Ahead https://www.scoutahead.org/plans/stamp-collecting-merit-badge/questions

Which of this applies to you?

Answering these takes the parts that are not for you out of Stamp Collecting Merit Badge. Nothing is required, nothing is kept on the server, and nothing is ever hidden because a question went unanswered. A step that might apply to you stays on the list and is marked.

Requirement 5: which tools?

The badge says demonstrate the use of at least THREE of the following stamp collector's tools. Choose three or more.

Requirement 7: which two?

The badge says do TWO of the following. A visit in 7(b) is made with an experienced collector, and the review in 7(c) needs your parent or guardian's permission.

Requirement 8: which collection?

The badge says mount and show, in a purchased or homemade album, ONE of the following. Four are collections of a stated size; the fifth is your own mail, monitored for 30 days.