Answer:
C) The difference between the price at which a dealer is willing to buy a security and the price at which a dealer is willing to sell it
Explanation:
The bid price refers to a price that should be high for an investor to pay for per share
While on the other hand, the ask price refers to a price that should be low i.e. the seller accept at that price
And, the difference between the two is known as the spread
So here the bid ask spread satisfied the C option as it is fits to the given situation
Hence, the correct option is C.