Nationally Registered Certified Medical Assistant (NRCMA) (NAHP) Practice Exam

A tumor that is non-progressive and not life-threatening is considered to be benign. This is because benign tumors tend to grow slowly, do not invade surrounding tissues, and are not considered cancerous. Malignant tumors, on the other hand, can be life-threatening as they grow rapidly, invade surrounding tissues, and can spread to other parts of the body. Invasive and Precancerous are both types of malignant tumors that can cause harm and potentially become life-threatening if left untreated. Therefore, they are not correct options for the given question.