Suppose that when 100 units of output are produced, the MC of the 101st unit is $2. This is equal to the minimum average total cost, and MC is rising. If the optimal output level is 150 units (in the short run), at that level:
a) MC>$2 and MC
b) MC>$2 and MC>ATC
c) MC=$2 and MC=ATC
d) MC=$2 and MC>ATC
e) MP<$2 and MC>ATC