A characteristic of market orders is execution ______ and price ______.

Whereas a characteristic of limit orders is execution _____ and price _____.

A. None of these - a limit order needs to hit a stop price before execution can occur.

B. Certainty, Uncertainty; Certainty; Certainty

C. Certainty; Uncertainty; Uncertainty; Certainty

D. Certainty; Certainty; Uncertainty; Uncertainty

E. Uncertainty; Uncertainty: Certainty; Certainty