We can learn about the living conditions of a vanished culture by examining its language. Thus, it is likely that the people who spoke Proto-Indo-European, the language from which all IndoEuropean languages descended, lived in a cold climate, isolated from ocean or sea, because ProtoIndo-European lacks a word for "sea, "yet contains words for "winter, ""snow, " and "wolf. " Which one of the following, if true, most seriously weakens the argument?
A: Some languages lack words for prominent elements of the environments of their speakers.
B: A word meaning "fish"was used by the people who spoke Proto-Indo-European.
C: The people who spoke Proto-Indo-European were nomadic.
D: There are no known languages today that lack a word for "sea. "
Choose A, B, C or D as your solution.
A