Two concepts combined with a linking term create a proposition

Which of the following disorders may simply involve extreme orderliness and rigid routines with this attention to detail and rules helping to keep activities totally under control and making the highly anxious person feel more secure?

a. obsessive-compulsive disorder b. somatization disorder c. agoraphobia d. conversion disorder

Arrange these infant motor skills from earliest to latest in the universal developmental sequence:

a. rolls over :: crawls :: stands alone :: walks up steps. b. stands alone :: walks up steps :: crawls :: rolls over. c. crawls :: rolls over :: walks up steps :: stands alone. d. rolls over :: stands alone :: crawls :: walks up steps.