As europe came under attack from multiple invading groups during the middle ages, which group launched the most devastating attacks across the continent?

The Vikings

Explanation:

The Vikings were Scandinavians and between the 8th and 11th century of the middle ages (5th to 15th century) raided most part of Europe causing much devastation in the continent.

answer; ( action training environment;

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.