Read the following and find out the incorrect statement.
a. Small intestine is distinguished into thre regions a shaped duodenum, a long coiled middle portionjejunum and a highly coiled ileum.
b. Oesophagus opens into the cardiac part of stomach.
C. Arrangement of teeth in each half of upper and lower jaw is represented by dental formula.
d Rectum is a smal sac which hosts some symbiotic micro-organisms.

Options

A. a and d
B. b and d
C. b and c
D. a andc

Answer

A