Sentence Correction

Just because King Alfred occupied and fortified London in 886 did not mean that he also won the loyalty of its citizens: the invading Danes were well aware of this weakness and used it to their advantage in 893.
(A) Just because King Alfred occupied and fortified London in 886 did not mean that he
(B) The fact that King Alfred had occupied and fortified London in 886 did not mean that he had
(C) Just because King Alfred occupied and fortified London in 886, it did not mean he
(D) The fact that King Alfred occupied and fortified London in 886, it did not mean that he
(E) Just because King Alfred had occupied and fortified London in 886, it did not mean he

IMO A

IMO B

had occupied and fortified seems correct as this happened before the 893 episode...as both events are in past....the earlier one should have a had..

Whats OA ?

is it B?

Whats the point of asking a question when the answer isnt posted????

B which refers to actions at different times by using "had"

IMO B

A has an awkward construction, IN C,D and E, pronoun 'it' referring to clause, is incorrect

IMO B

usage of had + non usage of it + usage of that

Guys chill out
OA is B ,as everyone expected .

This is a 1000 SC document question.

I agree to the explanartion, two time period are given - so we need past perfect in the first part of sentence. - king alfred had alread conquered London and this fast was later realised by Danes.

Hence only B is correct.
A - wrong tense.

Rest all B , C, and E do not come close even, ambiguous pronoun - "it".