Which sentence is written in the interrogative mood?

A.
Henry Knudson was such a mysterious man!
B.
Was the lead character of the novel a mysterious man?
C.
Henry Knudson was a mysterious man.
D.
The lead character of the novel could be a mysterious man.

B. Was the lead character of the novel a mysterious man?

The sentence written in the interrogative mood is B. "Was the lead character of the novel a mysterious man?"

The sentence written in the interrogative mood is B. "Was the lead character of the novel a mysterious man?"

To determine if a sentence is written in the interrogative mood, you need to look for a question word or the use of an auxiliary verb (e.g., is, are, was, were, can, could). In this case, the sentence starts with the word "Was," which is an auxiliary verb, and is followed by the subject and a question mark. This indicates that the writer is asking a question and is thus written in the interrogative mood.