var d Ox D | Question 18 0.2 Select true statements from the following. By convention, stack in MIPS grows downwards (i.e. from higher address to lower address). PUSH in MIPS always needs to store data first and then move $sp to next free address. O 'extern' directive asks assembler to reserve specified amount of space in memory without a need to initialize the space. MIPS provides native PUSH and POP operations for STACK access. D Stack pointer (Ssp) starts 4 bytes below the memory boundary for application program data space