Alcohol do decrease the release of Antidiuretic hormone. Its absorption is also slowed down by amount of food in stomach.
Option A and D.
Alcohol is very much related with decreasing effect on pituitary gland to release the Anti Diuretic Hormone or ADH which is actually responsible for the reabsorption of water through kidneys. So consumption of alcohol may make a person dehydrated.
Its mainly metabolized in liver by the enzyme alcohol dehydrogenase into aldehydes and then into acids which are further metabolized into several products.
Alcohol has a negative effect on REM sleep which is actually the main part of sleep cycle.
Alcohol dehydrogenase is an enzyme which metabolize the alcohol in liver. In females, the amount of alcohol dehydrogenase is less than what is found in males. So they often have alcohol toxicity much faster than males.