Assertion. If red blood cells were removed from the body and placed in pure water, pressure inside the cells increases.
Reason. Boiling point inside the pressure cooker.

Options

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

Explanation

To solve the assertion and reason question regarding red blood cells in pure water, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that if red blood cells (RBCs) are removed from the body and placed in pure water, the pressure inside the cells increases. This is due to the movement of water into the cells.

2. **Concept of Osmosis**: Osmosis is the process where solvent molecules (in this case, water) move from an area of lower solute concentration (pure water) to an area of higher solute concentration (inside the RBCs) through a semi-permeable membrane. RBCs act as semi-permeable membranes.

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