Answer:
B -Britain should govern the American colonies because the colonists are of English descent.
Explanation:
A. The use of youth-produced slang became more common.
For "He lived a year in a minute" I think it means that all of a sudden he looks very old, is tired, or maybe time went by really fast? Like I said I am not 100% sure so don't take my word for it. Heck I am not 10% sure, more like I am 5% sure, 20% at the most. Sorry if I am wrong.