Which one of the following cells secretes cerebrospinal fluid?

Which part of the brain increases in size from fishes to mammals?

Which of the following is $NOT$ a correct pair?

In mammals,the corpus callosum connects

In humans,what does the corpus callosum connect?

Given below are two statements:
Statement $I$: Limbic system is responsible for motivational drives and memory.
Statement $II$: Reticular activating system of diencephalon transmits all sensory impulse to the cerebrum.
In light of the above statements,select the correct answer from the options given below.