Complete the story one day when i visited the bank with my father to changr the old

one day when I visited the bank with my father to change the old currency, there was a bank robbery .

I had found a new coin, one that i had never seen before. By the time i got to the bank with my father, an old man who worked there told me to hang on it for life. That one day it would help me go through life easier. 20 years later, i found the coin hidden in my drawer...I was moving out and decided to figure out what it might be...When i went online, i searched coin, dollar anything!? but couldn't find nothing. It was yellow, chunky, an had a weird shine...I decided to search it up on detail, that when i figure out. It was a chunk of gold. $8,000 dollars worth of it! I could help my grandfather with his inviction, and pay my rent for two years. Instead, i decided to save it though. I would pass it down to my future children, i anyways wanted my grandfather to live with me (since hes old now) and i can already pay my rent monthly. I feel that this decision would help, and so it did. 

Ithink it’s the answer might be c