My Logic: Option B seems to be it. Moreover, other choices do not seem challenging enough. Like, option D might have been a contender if it were something like ∑ip(X=i)∑∞i=5iP(X=i)
Expectation is given by∑ xi Pi∑xIf the max capacity is 4, we just exclude those 4 cases and calculation the rest to arrive the required expected value.
Is option B the right answer i think so
