The war powers resolution states that a president may decide on his own to send troops into battle; however, the president must also do which of the following? i.    notify congress two days in advanceii.  remove the troops after two months unless congress grants an extensioniii. briefly step down to allow the vice president to serve as chief executivea. i, ii, and iiib. i and ii onlyc. i and iii onlyd. ii and iii only