Animals whose bodies do not have a certain shape are considered what?
a. bilaterally symmetrical
b. asymmetrical
c. radially symmetrical
d. unilateral

Could you attach an image of the table ?

the correct answer is: " ventricles " .

"recent advances in brain imaging have allowed clinicians to make scientifically useful comparisons in the relative size of the chambers in the brain that are filled with cerebrospinal fluid."

{source: refer to text within question.}.

these chambers are called ventricles .