Watch the short video and answer the multiple choice questions below.
1. What is the speaker interested in?
A) only physics
B) many things, but not physics
C) physics and language groupings, among other things
D) long-distance relationships
2. How old does he think modern language is?
A) 20 to 25 thousand years old
B) not as old as cave paintings
C) as old as cave sculptures
D) at least 35 thousand years old