Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R). **Assertion (A):** Benign tumors are generally non-life-threatening and remain localized, whereas malignant tumors have the capacity to invade surrounding tissues and metastasize. **Reason (R):** Malignant tumor cells exhibit a loss of contact inhibition and secrete matrix metalloproteinases (MMPs) that degrade the extracellular matrix. In the context of the above statements, which of the following is correct?
Options:
- A: Both A and R are true and R is the correct explanation of A
- B: Both A and R are true but R is not the correct explanation of A
- C: A is true but R is false
- D: A is false but R is true
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