Q: Valid English sentence (grammatically) or not: How carelessly have you picked up TNT?
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: Know yourself!
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: Which version did they recommend?
OPTIONS:
- unacceptable
- acceptable

A:
acceptable