Answer

Correct option: (ii) Simple and fast instructions

Explanation

RISC (Reduced Instruction Set Computer) microcontrollers use a relatively small and simple instruction set. Instructions are designed to execute efficiently, often in a small number of clock cycles.

Main characteristics of RISC

• Small and simple instruction set.
• Fast instruction execution.
• Large or efficient register usage.
• Simple instruction formats.
• Efficient pipelining in many architectures.
• Suitable for embedded real-time applications.

This approach makes the processor easier to implement and can provide high performance for a given clock frequency.

Therefore, the correct answer is (ii).