Older people may be more likely to have traffic accidents in situations...

A)where there is sufficient time to react.
B)age does not influence accident rates.
C)that require a quick response.Correct
In general, older people experience a loss of their psychophysical abilities: vision problems, hearing problems, etc. This means they have greater difficulty driving in complex situations that require a quick response, such as merging onto or exiting roads where traffic travels at high speed.