To be indifferent ______ our work is a serious offence.AtoBwithCaboutDforAnswer: A. to Read Explanation: Indifferent to is the standard prepositional phrase.Indifferent means not interested in or not concerned about something.The preposition to follows indifferent: indifferent to criticism, indifferent to success, indifferent to our work.With, about, and for are not normally used after indifferent in this construction. Read more in App