Answer: H4
Step-by-step explanation:
Looking at the reviews given per price, a conclusion can be made that the higher the price of staying in the hotel, the higher the ratings given which would imply that the hotels charging higher, have better amenities.
This does not hold for H4 however as they are charging more than H1 but still getting the same reviews as them.
This could either mean that H1 is efficient enough to be getting the same rating for the same price as H4 or that H4 is inefficient such that they are not utilizing their amenities enough to get a higher rating than H1 who they should be better than.
Either scenario point to inefficiency on H4's part.