Jacob skips, climbs ladders, and is able to change direction very quickly while running. his gross-motor skills are normative for a -old child. 2 4 3 5

Gross motor skills involve large muscles in the arms legs and torso. The general guidelines for gross motor development for children 4 years of age include running, jumping and climbing well and control their direction. They can hop on one foot and they start to skip at this age. At this stage, they are also able to ride a tricycle and reliably catch a ball. 

The answer to your question is 4.

Transpiration is the answer