[A] : Elephants have lophodont type of teeth.
[R]: There is an intricate folding of the enamel and dentine to form transverse ridges.

Options

A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false

Answer

To solve the question, we need to analyze the assertion and reason provided:

### Step 1: Understand the Assertion
The assertion states that "Elephants have lophodont type of teeth."
- Lophodont teeth are characterized by having transverse ridges formed by the folding of enamel and dentine. They are adapted for grinding plant material, which is essential for herbivorous animals like elephants.

### Step 2: Understand the Reason
The reason states that "There is an intricate folding of the enamel and dentine to form transverse ridges."
- This statement explains the structure of lophodont teeth, where the intricate folding of enamel and dentine creates the transverse ridges that are characteristic of this type of tooth.

### Step 3: Analyze the Relationship Between Assertion and Reason
- Both the assertion and the reason are true statements.
- The reason provides a correct explanation for the assertion. The structure of lophodont teeth (the intricate folding of enamel and dentine) is what allows elephants to have this specific type of tooth.

### Step 4: Conclusion
Since both the assertion and the reason are true, and the reason correctly explains the assertion, we conclude that:
- Both A and R are true, and R is the correct explanation of A.

### Final Answer
Both A and R are true, and R is the correct explanation of A.

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