Step 1: Examine part (A).
The correct idiomatic expression is “in a temper”, not “in the temper”.
Hence, part (A) contains an error.
Step 2: Examine part (B).
“And refused” is grammatically correct and properly connected to the subject.
Step 3: Examine part (C).
Although “refused” is usually followed by “to + verb” (i.e., \emph{refused to discuss}), the first clear and standard error identified is in part (A).
Step 4: Final conclusion.
The incorrect part of the sentence is \(\boxed{\text{(A)}}\).