Which of the following can be the case of Quantal dose-response relationship?

Which of the following can be the case of Quantal dose-response relationship? Correct Answer Binary

The drug effect of Quantal dose-response relationship can be binary i.e. either it can be present or it can be absent. Whereas, secondary, primary, tertiary are the stages of a treatment process and is not related to this.

Related Questions

Assertion (A): When there is an evidence of a linear relationship between two variables, it may not always mean an independent-dependent relationship between the two variables.
Reason (R): The casual relationship between the two variables may not imply a reasonable theoretical relationship between the two.