Answer:
I don't see any options available for me to choose from but, A thank you letter, a letter to a teacher/ employer, and a letter containing important information would all be times that you would want to send a formal letter.
Explanation: I hope this is helpful...?
D since the main goal is to form a perfect union then it follows to rights and leads on
I'd probably go with the first one because the second one, lifting and stretching arms helps with breathing, the third, taking a run is considered a cool-down exercise and the last one is stretching legs, stretching muscles is advised after a workout. Which leaves me to believe that the answer is the first one.
