Scientific knowledge is an intoxicating draught, and it may be one in which the human race is unable to sustain.

Answer: Option A

Drink : take (a liquid) into the mouth and swallow.
Product : an article or substance that is manufactured or refined for sale.
Disease : a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury.
Process : a series of actions or steps taken in order to achieve a particular end.
Draught : a single act of drinking or inhaling.

Synonym of Draught is Drink