Answer: The correct answer is "charging a higher price to those with less elastic demand and a lower price to those with more elastic demand than it would if it could not price discriminate."
Explanation: Price discrimination is a practice that involves charging for the same good or service, different prices to different consumers even though the cost of providing them is the same.
Elasticity of the demand: it is a concept that in economy is used to measure the sensitivity or capacity of answer of the demand of a product against a change in its price.
So: A price-discriminating monopolist can increase profits by charging a higher price to those with less elastic demand and a lower price to those with more elastic demand than it would if it could not price discriminate.