I need help with this pleasee

A   The oldest rock layer will occur at the bottom of the sequence

Explanation:

A) At the bottom of the rock sequence

Explanation:

If undisturbed, rock layers will build up over time, leaving the oldest ones on the bottom as new layers are on the top.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

answer; /// i believe the correct answer is (thrombocytopenia); (a)