Which technological advancement was most useful for helping to break the stalemate on the western front a. telegraph
b. tanks
c. submarines
d. telephone

make sure the answer is right :)

B.

Explanation:

The tanks helped them across the dead mans zone

in an absolute  monarchy, the  monarchrules as an autocrat, with absolutepower  over the state and government — for example, the right to rule by decree, promulgate laws, and impose punishments. the  monarch isnominally sovereign but the electorate, through their legislature, exercise political sovereignty.

answer; cindy crawford tina feycarrie underwood///meryl streep;