Until about the century, music was transmitted orally, not in written form.
a. tenth
b. eleventh
c. thirteenth
d. twelfth
student a
incorrect

The correct answer is A. tenth. There must have been a grading error :/

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.

answer: a video that encourages an armed attack on the government.

explanation: it is a violent overthrow to the government.

hope this : )