A canal called the _________________(L) passess through the midbrain. ___________ (E) and _____________ (F) form the ________________ (I) .

Question

( a ) corpus callosum; Pons and medulla; brain stem
( b ) cerebral aqueduct; Pons and and hindbrain; brain stem
( c ) cerebral aqueduct; Midbrain and hindbrain; brain stem
( d ) corpus callosum; Pons and and hindbrain; brain stem