Assertion (A): Inactive stage in the cell cycle is quiescent stage.
Reason (R ): All the cells pass through quies cent stage.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and R are true, but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

To solve the question regarding the assertion and reason about the quiescent stage in the cell cycle, we will follow these steps:

### Step 1: Analyze the Assertion
- The assertion states that "the inactive stage in the cell cycle is the quiescent stage."
- This statement is **true**. The quiescent stage, also known as G0 phase, is indeed a phase where cells are not actively dividing and can be considered inactive in terms of the cell cycle.

### Step 2: Analyze the Reason
- The reason states that "all the cells pass through the quiescent stage."
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