Answer:
Step-by-step explanation:
The way this is normally done is to take the difference between the bid price and the ask price and divide by the ask price. That answer is not listed. What is listed is the difference divided by the bid price which is (.68 -.64)/.64 That gives 0.0625. To get a % multiply by 100..That gives 6.25% which is A.
So that is the best I can do for you.. Done the way I first suggested gives 5.88% which isn't there.