The correct answer is D. VLIW.
VLIW (Very Long Instruction Word) is a type of instruction set architecture (ISA) that allows multiple instructions to be executed in parallel by a single processor. This is done by packing multiple instructions into a single instruction word, which can then be decoded and executed by the processor's multiple functional units.
ALU division is a type of instruction that can be executed by a VLIW processor. It is used to divide two numbers, and the result is stored in a register.
The other options are incorrect for the following reasons:
- Subword parallelism is a technique that can be used to improve the performance of integer arithmetic instructions. It does not support ALU division.
- CISC (Complex Instruction Set Computer) is a type of ISA that has a large number of instructions. It does not support ALU division.
- Superscalar is a technique that can be used to improve the performance of a processor by executing multiple instructions in parallel. It does not support ALU division.