(A) if they did not hold it, their grip on Algeria was always insecure
(B) without it, their grip on Algeria would never be secure
(C) their grip on Algeria was not ever secure if they did not hold it
(D) without that, they could never be secure about their grip on Algeria
(E) never would their grip on Algeria be secure if they did not hold it
Solution:
Awkwardness + Pronoun
A can be eliminated for the awkward usage of if they did not was always
C can be eliminated because of not ever rather than never and the awkward if construction.
D is awkward due to the use of without that and secure about. Also, that is not the best pronoun here.
E is awkward due the if construction.
Also, in C and E, it doesnt have a clear precedent it may also refer to grip.
B is the best choice.
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