Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Malignant tumors exhibit metastasis, which is considered the most feared property of cancer. Reason (R): Neoplastic cells in malignant tumors grow very rapidly, invading and damaging surrounding normal tissues by starving them of vital nutrients. In the light of the above statements, choose the mos

Step-by-step solution

Assertion (A) is true because malignant tumors have cells that slough off and reach distant sites through blood, forming new tumors wherever they lodge. This property, called metastasis, is the most feared property of cancer. Reason (R) is also true because cells of malignant tumors grow rapidly, invading and damaging surrounding normal tissues. As these cells actively divide and grow, they also starve the normal cells by competing for vital nutrients. However, Reason (R) explains the local damage and competitive g