assume a security follows a geometric brownian motion with volatility parameter σ = 0.2. assume the initial price of the security is 21 and the interest rate is 0. it is known that the price of a down-and-in barrier option and a down-and-out barrier option with strike price 19 and expiration 30 days have equal risk-neutral prices. compute this common risk-neutral price.
note time in years (or 252 trading days). so expiration is 30/252 yrs.

idk

step-by-step explanation:

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)

i think it would be c

mark brainliest if im right

step-by-step explanation: