Which one of the following is the true description about an animal concerned?

(1) Rat - Left kidney is slightly higher in position than the right one

(2) Earthworm - The alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard and intestine

(3) Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)

(4) Frog - Body divisible into three regions - head, neck and trunk