IBPS PO Prelims 4 Dec 2021 Shift 2 Solved Paper

Direction: In the questions given below, find out which of the phrases (I), (II), (III) given below should replace the phrase given in bold in the following sentence to make the sentence grammatically correct. If the sentence is correct as it is and no correction is required mark (5) as the answer.
We have to work over the total cost before we buy the house.
I. work up
II. work through
III. work out