15. For the instruction rcall k, which of the following is correct? (a)k is the distance of the subroutine to be called (b)k is the address of the subroutine to be called (c) kisa register that holds the address of the subroutine to be called (d) the address of the subroutine to be called is in Z pointer Part II 1. Write an instruction sequence to add the 16-bit value stored in ox2000-0X2001 and OX2002-0X2003 and leave the sum in ro and in which ro holds the Isb and holds msb. (7 points) 2. Write an instruction sequence to copy the value stored in program memory at 0x3000-0x3001 to data memory locations ox2000-0X2001. (8 points) 3. Write an instruction sequence to store 9,13, and 25 at data memory locations at Ox2005, ox200A, and ox2000, respectively. (10 points)