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Option-1 states that both the Assertion (A) and the Reason (R) are true and that R is the correct explanation of A.
To evaluate this option, let`s first understand what is being asserted here. In Assertion (A), it is stated that Vitamin B complex is taken along with antibiotics to protect the intestinal flora of E. coli bacteria.
The Reason (R) provided is that antibiotics kill bacteria in the body.
Now, let`s analyze whether R is indeed a correct explanation of A. Antibiotics are medications that are used to kill or inhibit the growth of bacteria. However, Vitamin B complex is not specifically taken to protect E. coli bacteria. It is taken for its role in supporting overall health and well-being. While it may have some benefits for intestinal health, the primary purpose of taking Vitamin B complex is not to protect intestinal flora from antibiotics.
Therefore, Option-1 is incorrect.
The correct answer is Option-2. Both the Assertion and the Reason are true, but R is not a correct explanation of A.