What does "reproductive toxicity" describe?

Reproductive toxicity specifically refers to the harmful effects that certain chemicals or substances can have on the reproductive system, which includes both the male and female fertility functions. This encompasses various adverse effects such as reduced fertility, developmental issues in offspring, and potential impacts on pregnancy outcomes.

In the context of the choices provided, the other options describe different health concerns. For instance, an increased risk of cancer relates to carcinogenic properties, allergic reactions pertain to hypersensitivity responses, and symptoms developing rapidly after exposure refers to acute toxicity. None of these aspects fall under the definition of reproductive toxicity, which focuses solely on the effects related to reproduction and reproductive health.