Final answer:
The bladder is located in the Pelvic cavity, which is a subdivision of the abdominopelvic cavity.
Step-by-step explanation:
The body cavity that contains the bladder is the Pelvic cavity (C).
Vertebrate animals have two major body cavities: the dorsal cavity and the ventral cavity. The ventral cavity is further divided into the thoracic cavity and the abdominopelvic cavity. The pelvic cavity is a subdivision of the abdominopelvic cavity, and it is where the bladder is located.