Question

how many regions were displayed in the descriptive system of the abdomen in which the area was divided like a tic-tac-toe board? four nine fifteen

Explanation:

The abdominal region divided like a tic - tac - toe board (using two horizontal and two vertical planes) creates a 3x3 grid, resulting in 9 regions. This is a standard anatomical knowledge related to the nine - region abdominal division system.

Answer:

B. nine