$.$ A Level I quote shows: $($a$)$ the best bid and offer price from Nasdaq member firms; $($b$)$ the best bid

and offer prices and the largest depth; $($c$)$ all of the offers to buy and sell and their respective depths; $($d$)$

the specialist$$s order book.

$10.$ The Nasdaq Total View display shows: $($a$)$ the best bid and offer prices from NASD member firms;

$($b$)$ the top five bid and offer prices from market makers; $($c$)$ all of the attribted and anonymous offers to

buy and sell their respective depths; $($d$)$ the specialist$$s order book.

$11.$ The biggest risk from placing a market order is: $($a$)$ slow execution; $($b$)$ a partial fill; $($c$)$ receiving a

price away from the inside market; $($d$)$ higher commissions;

$12.$ A trade filled at a sub$-$penny price: $($a$)$ was likely internalized by a dealer; $($b$)$ matched a corresponding

sub$-$penny quote; $($c$)$ was the result of a market order; $($d$)$ did not occur on a dark pool.

$13.$ Trading outside of market hours, $9$:$30$ AM to $4$:$00$ PM: $($a$)$ is illegal; $($b$)$ occurs only on ATSs; $($c$)$ is

futile because spreads are too wide; $($d$)$ is risky because you do not have national market protection;

$14.$ You can trade Tape A stocks on: $($a$)$ Nasdaq; $($b$)$ NYSE; $($c$)$ CBOE; $($d$)$ all of the above.