GMAT Critical Reasoning (CR) | Re: Governor: The bridge that spans the Brookline and Kings boro

Governor: The bridge that spans the Brookline and Kings boroughs is in desperate need of repair with estimates in the range of $30 million. Over one million vehicles cross the bridge each day. Therefore, if the city charges a mere $1 dollar toll for crossing the bridge, we will be able to raise enough funds to make repairs to the bridge within a month.

Which of the following is an assumption upon which the governor's argument depends?

(A) The bridge, if not repaired, will likely collapse, causing