I think it’s A they don’t focus on any single thing and no other answer fits
Answer:
verb
Explanation:
because it's not a prepositon, conjunction, or a noun.
this should be an easy question for you, if you know the definition of each of those words.
B. is the BEST because it gives the flexibility of theme ideas for courage.
C. is very specific on climbing mountains as the only way to learn about courage.
A and D are criticising courage.
