In what way did trench warfare turn out to be a disadvantage to both germany and the allies in the war? trenches were too deep to allow troops to fire their weapons, so the troops were weak and vulnerable. trenches were poorly dug and collapsed often, greatly slowing the troops’ movement. troops from both sides often overran the same trench, leading to many deaths and injuries. troops were basically trapped in their trenches, preventing progress toward seizing enemy territory.

The correct option is this: TROOPS WERE BASICALLY TRAPPED IN THEIR TRENCHES, PREVENTING PROGRESS TOWARD SEIZING ENEMY TERRITORY.
A trench refers to a long and deep ditch, big enough to accommodate humans.  Trenches were used by soldiers during the World War 1. Soldiers faced a lot of difficulties living in these trenches, and it become a disadvantage to German and the other allied power, because the trenches hindered their progress towards seizing their enemies' territories.

d is correct on edge

Explanation:

To the Boer Republics

Explanation: When the british began settling in south africa, many afrikaners went to the Boer Republics.