请问一道语法题

inverson

In reaction to King Charles I's attempt to arrest five parliament members in 1642, the House of Commons maintained that it had a right to question the right of the sovereign to enter its chamber.

(A) -
(B) they have a right to question the sovereign's right to enter their chamber
(C) they will have a right to question the sovereign's right to enter their chamber
(D) it was their right to question the sovereign's right to enter their chamber
(E) it has the right to question the sovereign's right to enter its chambers
这道题的答案式A,我在A和E中徘徊了一会。因为印象中og的一道题（如下）就选了现在时。所以请问E是因为has的时态不对吗？

77.        A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.

(A)        reduced the amount of phosphates that municipalities had been allowed to dump

(B)        reduced the phosphate amount that municipalities had been dumping

(C)        reduces the phosphate amount municipalities have been allowed to dump

(D)        reduced the amount of phosphates that municipalities are allowed to dump

(E)        reduces the amount of phosphates allowed for dumping by municipalities

kiwifoodtown

LZ，第一题，因为从句作为maintained的内容必须要和它的时态相一致。

而OG的这道题是完全不同的，这道题的从句时态和谓语动词时态是无关的。reduced是谓语它作用于amount，而从句是定语仅仅修饰phosphates。所以与reduced无关，时态也可以不受影响。