A: Tyannosaurus rex had fearsome dagger like teeth.
R: Tyrannosaurrus was largest dinosaur depending upon herbs and shrubs.

Options

A. If both Assertion `&` Reason are true and the reason is the correct explanation of the assertion. Then mark (1)
B. If both Assertion `&` Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are falses statements, then mark (4)

Answer

To solve the assertion and reason question regarding Tyrannosaurus rex, we will analyze both statements step by step.

### Step 1: Analyze the Assertion (A)
The assertion states: "Tyrannosaurus rex had fearsome dagger-like teeth."
- **Evaluation**: This statement is true. Tyrannosaurus rex is known for its large, sharp teeth that resemble daggers, which were adapted for a carnivorous diet. These teeth were effective for tearing flesh, confirming that T. rex was a predator.

### Step 2: Analyze the Reason (R)
The reason states: "Tyrannosaurus was the largest dinosaur depending upon herbs and shrubs."
- **Evaluation**: This statement is false. Tyrannosaurus rex was not an herbivore; it was a carnivore that primarily fed on other animals. Therefore, it did not depend on herbs and shrubs for its diet.

### Step 3: Conclusion
Now, we combine our evaluations of the assertion and the reason:
- The assertion (A) is true.
- The reason (R) is false.

### Final Answer
Since the assertion is true and the reason is false, the correct answer is option C: "Assertion is true, but the reason is false."

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