A latent health effect is manifested when

A latent health effect is manifested when
 
  a. an injury, disease, or death that is caused by exposure to a substance develops rapidly and quickly comes to a crisis.
  b. an injury, disease, or death that is caused by exposure to a substance develops slowly over a few days, weeks, or longer periods.
  c. an injury or disease of relatively short duration is caused by exposure to a substance and from which recovery occurs rapidly.
  d. an injury or disease caused by exposure to a substance occurs only after an extensive time period has passed.