Answer the following question using this order book:

Order Book Example

Buy Orders (Bids) Sell Orders (Asks)

Amount Price Amount Price

63 $42.15 3 $42.16

36 $42.12 68 $42.22

112 $41.99 113 $42.25

3 $41.88 9 $42.44

What is the spread for this security after an investor submits a sell order for 185 shares at $41.87?

a.)0.01

b.) 0.29

c.)0.28

d.)0.17