Answer:
-14
Step-by-step explanation:
I think Also 9 is wrong
George's financial outcome was $70. He bought it for $50, and then he sold it for $60 in return. He bought it for $70 again, so subtract 60-70= -10. He then sold it for $80 which he gained so -10 + 80 = $70.
Only option b will allow them to meet their goal