Select the correct indirect form of the given sentence.
The chemist said to me, "I cannot take these medicines back as they are special medicines."

Correct option is B

The correct indirect speech is (b).
Direct speech: Quoting the exact words of the speaker.
Indirect speech: Reporting the speaker’s words without quotation marks.
Rules of conversion:
• Change present tense verbs into past tense.
• Change demonstratives: "these" → "those", "they are" → "they were".
• Reporting verb “said to” becomes “told”.
Example:
Direct: She said to me, "I am tired."
Indirect: She told me that she was tired.