属于学习行为的是（   ）

A．鸟类孵卵

B．野鸭迁徙

C．鹦鹉学舌

D．蜘蛛织网

—How long does it             you to go to the post office, Jake?

—About half an hour. [ ]

A. take

B. spend

C. cost

D. pay