Critical Reasoning: All English-subject teachers in colleges give lectures in English. And all teachers in The universities give lectures in English in their own subjects. Therefore, I conclude that all teachers are English-subject teachers. The argument is invalid because:

A    The writer bases his argument on another argument that contains circular reasoning

B    The writer has illogically classified two disparate groups together when there is no relationship between them, except that they both have the same attribute.

C    The writer has made a mistaken analogy between dissimilar qualities.

D    The write has used a fallacy, which involves the ambiguous description of teaching in English.