Question

what did amendment 20 change regarding the presidency?
cabinet size and structure
succession and term dates
military executive powers

Explanation:

The 20th Amendment to the U.S. Constitution adjusted the start and end dates of presidential and congressional terms (moving them from March to January) and clarified presidential succession rules for cases where the elected president dies before inauguration. It does not address cabinet structure or military executive powers.

Answer:

succession and term dates