Body cavities contain and are lined by a

b. The thoracic cavity is the cavity of the chest.

Explanation:

A body cavity by definition is a space or potential space in the body, which accommodates different organs or structures of the body. The human body has several body cavities below are some examples:

  CAVITY                                     SAMPLE ORGAN

Cranial cavity                                         brain

Thoracic cavity (chest cavity)               lungs  

Abdominal cavity                               intestines

Pelvic cavity                                         bladder

Ruling out the rest:

What is being described in choice a. is an orifice.

The pleural cavity is also called pleural space. It surrounds the lungs, but the lungs are not found in it.

Explanation:

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