什么题目啊 完全没懂

问题如下：

Which of the following statements is most accurate regarding the effect of unreimbursed operating expenses on the NOI of the New York City and Boston properties?

选项：

A.A.The NOI of the office property in New York City is more negatively affected by unreimbursed operating expenses than is the NOI of the multi-family property in Boston. B.B.The NOI of the multi-family property in Boston is more negatively affected by unreimbursed operating expenses than is the NOI of the office property in New York City. C.C.The NOIs of both properties are affected similarly by unreimbursed operating expenses.

解释：

B is correct. The multi-family property in Boston has total operating expenses of USD1,294,510 (the sum of its property management fees plus other operating expenses) and zero in expense reimbursement revenue. Dividing this amount by effective gross income creates a ratio of 45.7%. Doing the same for the office property in New York City creates a ratio of 35.5%. Response A is incorrect because although the New York City property has higher expenses, it also has higher income amounts as well. Response C is incorrect because the effect of unreimbursed expenses is clearly different for the two properties.