How did british manufacturing give great britain an advantage in the war?

High industrial production of all war essential goods and service

Explanation:

British manufacturing system brought in some of the major interventions at the time of war such as

a) High range guns and missiles

b) High ship production

c) High ordnance production

d) Better mode of commuting (steam engines, railways, motor vehicles etc)

Due to high industrial productivity, the ordnance and many other things were manufactured in surplus amount.

This was not the case with other battling countries and hence, Great Britain was enjoying an upper advantage because of  its manufacturing sector.

the answer to your question is:

c. complementary base-pairing