The driver was discharged while the car owner was … for fraud.

Analyze the question

The italics did not come through in your text. The sentence "The driver was discharged while the car owner was ___ for fraud" suggests the italicized word is discharged. I am assuming that. We need the option that is opposite in meaning to it.

Explain the concept

In legal English:

• Discharged means released or set free by the court, with no further obligation to stay in custody.
• Remanded means sent back into custody, or held, while the case continues.

Check each option

• A. remanded: held in custody by order of the court. This is the opposite of being discharged (freed).
• B. detained: held, so it is somewhat opposite. But "remand" is the specific court term that contrasts with "discharge", and the sentence is set in a court context.
• C. acquitted: declared not guilty. This is close in meaning to "discharged", so it is a synonym, not an opposite.
• D. sued: this is a civil action, so it doesn't contrast with "discharged".

Answer

The driver was set free, while the car owner was kept in custody (remanded) for fraud.

Tip: In court vocabulary, pair the words as opposites: discharged/released vs remanded/held, and acquitted vs convicted. If an option means the same as the italicized word, as "acquitted" does here, eliminate it first.