Answer:
correct option is C. $45 
Step-by-step explanation:
given data 
par value = $100
share = 50000
current market value = $180
stock split = 4 for 1 
solution
we get here market value of the stock fall that is 
market value of the stock fall = current market value ÷ stock split .........................1
put here value and we get 
market value of the stock fall = 
 
market value of the stock fall = $45 
so here correct option is C. $45