You are managing a software development project which should be completed in $18$ months according to the project contract and schedule. Your customer has recently faced regulatory changes that require your project to be finished $2$ months earlier and he asks you to do so$.$ How will you

$?$approach this situation

$.$Cut the duration of all project activities across the board to meet the requirement $.$a Accept the customer's request and cut parts of the project scope to meet the new deadline $.$b Stick to your original schedule and tell the customer that once the contract is signed the project duration won't change under any circumstances $.$c Inform the customer of the impacts of his requirement to project constraints and, after getting the required approvals, crash the project $.$d