Read the paragraph from liam’s narrative.

1i had never been more frightened in my entire life. 2as i stepped onto the diving platform, i waited for instructions from my diving coach. 3only because his directions were so clear, and because he was so nice, was i able to do it. 4it had all been worth it, i thought, as i changed from my bathing suit back into clothes. 5i had achieved what i had set out to do.

which sentence could replace sentence 5 to make the paragraph more precise?

a)i was able to accomplish the goal i had set for myself.
b)i had finally managed to dive from the highest platform.
c)i had surprised myself by being able to do what i didn’t think i could.
d)i truly owed a lot to coach wilkerson for all the he had given me.