Melinda is telling her friends about her brother who is 21. Which answer correctly describes how she should sign her brother's age?

a) Sign the number starting at the shoulder level, palm upward, then move up.

b) Sign the number starting at the chin with an outward palm orientation and pull down.

c) Sign the word "old," then sign the number.

d) Sign the word "old" with palm facing downward.

Melinda should sign her brother's age in ASL by using the number signs for '21', without including additional motions such as signing 'old' or starting at specific body locations like the shoulder or chin.

Explanation:

The correct way for Melinda to sign her brother’s age in American Sign Language (ASL) is not explicitly provided in the options listed. However, typically in ASL, when indicating someone's age, you would sign the number corresponding to the age, moving the hand outward from the shoulder or chest without needing to sign the word 'old' or using shoulder level as a starting point. As such, the best answer might be to simply sign the number '21' using the appropriate number signs in ASL, typically done by starting with your dominant hand in a "2" shape and then transitioning to a "1" shape.