I. When two or more languages merge together to form a new language. ii. When one language breaks into different dialects and eventually breaks into different languages. iii. When there is a lack of interaction between speakers of the same language. iv. When there is constant interaction between groups that speak different languages. A. i. And iv. B. ii. Only iii. C. i., ii., and iii. D. i., ii., iii., and iv.

HIppocampus

Explanation:

Hippo campus is a part of your brain which is involved in the formation of new memories and data acquirement process. This part of the brain is extremely crucial in learning process.

When you somehow damage this part of your brain, your ability to learn new information will be compromised. This might explain why the person described on the excerpt unable to name the news event that he learned after the damage occurred.