Answer:
It's/an
Step-by-step explanation:
-''It's'' is used for an abbreviation of "it is'' or "it has".
example: "It's been nice outside all week!"
-"its'' is used for a description
example: "The sun is shining today, and its warmth feels nice."
"A" is used before a word that has a consonant sound (a non-vowel)
"An" is used before a word that has a vowel sound (A, E, I, O, U sounds)
Honor has a vowel sound of "AH-ner", therefore, "An" is used.
I hope this helped! :)