The sixth generation of the Ford Thunderbird is a large personal luxury coupe that was produced by Ford for the 1972 to 1976 model years. A counterpart of the Lincoln Continental Mark IV, this generation of the Thunderbird was the largest ever produced; weighing in at over 5000 lb , they are also the heaviest coupes ever produced by Ford (aside from its Mark IV counterpart).
Can we infer the following?
The sixth generation of the Ford Thunderbird is one of the lightest coupes.

Select from the following.
[a]. Yes.
[b]. It's impossible to say.
[c]. No.
The answer is:
[c].