1. Show the stack with all activation record instances, including static and dynamic chains, when execution reaches position 1 in the following skel etal program. Assume bigsub is at level 1. function bigsub) function a () function b() f ) // end of b function c) ( b) ) // end of c c ) // end of a a )i ) // end of bigsub 1. Show the stack with all activation record instances, including static and dynamic chains, when execution reaches position 1 in the following skel etal program. Assume bigsub is at level 1. function bigsub) function a () function b() f ) // end of b function c) ( b) ) // end of c c ) // end of a a )i ) // end of bigsub