Assertion (A): Lymph acts as a middle man between blood and tissue fluid.
Reason (R): Lymph is a colourless fluid.

Options

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

Explanation

To analyze the assertion and reason provided in the question, we can break down the solution into the following steps:

### Step 1: Understand the Assertion
The assertion states that "Lymph acts as a middle man between blood and tissue fluid."
- This means that lymph plays a crucial role in the transport and exchange of substances between blood and the interstitial (tissue) fluid.

### Step 2: Understand the Reason
The reason states that "Lymph is a colorless fluid."
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