Assertion: The movement of ions into or out of the cells is usually called flux.
Reason: The entry or exit of ions to and from the symplast, is an active process.

Options

A. If both assertio and reason are true and reason is the correct explanation of assertion
B. if both assertion and reason are true but reason is not the correct explanation of assertion
C. if assertion is true but reason is false
D. if both assertion and reason are false

Answer

B

Explanation

The movement of ions is usually called flux, the inward movement into the cells is influx and the outward movement is called as efflux. The entry or exit of ions to and from the symplast requries the expenditure of metabolic energy, which is an active process.