Correct option is B
Statement I: Acute health effects are caused due to prolonged exposure to a chemical.
This statement is false. Acute health effects typically occur immediately or shortly after exposure to a chemical, not after prolonged exposure. These effects are often more severe and short-lived.
Statement II: Chronic health effects occur when an individual is exposed for a very short period.
This statement is also false. Chronic health effects typically develop after prolonged or repeated exposure to a chemical over a longer period. These effects are often less severe but can be long-lasting or permanent.
Therefore, both statements are false.