Foramen of magendie, drains CSF from which midline structure and exits from it:
Fouh ventricle is the last ventricle in the cerebellum, its T shaped roof has three apeures which communicates with the subarachonoid space. Foramen of magendi a median apeure is present doraslly in the roof, it communicates with the cisterna magna. Foramen of luschka is a lateral apeure which is present on right and left side. It drains into the cerebellopontine angle cistern. Ref: Human Anatomy By B.D Chaurasia, 4th edition, Vol 3, Page 341
Third ventricle
Fouh ventricle
Lateral ventricle
All of the above