What is the first thing an informal letter writer should write, and what type of letter does not allow exaggeration or repetition?

The question asks for the first thing a letter writer should write.
"Ohun akoko ti alaroko onileta aigbagbefe gbodo ko ni (a) deeti (b) ila-pa-oro (d) akele"
Translation: "The first thing an informal letter writer should write is (a) date (b) salutation (d) address."
In letter writing, the sender's address is typically written first. 'Akele' means address.

The correct answer is (d).

The question asks for the type of letter that does not allow for exaggeration or unnecessary repetition.
"Leta ti ko fi aye gba irege