Which of the following hardware components will lose their data when the power to a computer is switched off?

Volatile memory loses its data the instant power is removed, which is true of Statement 1 processor registers, Statement 2 cache memory and Statement 4 the RAM.

Statement 3 the SSD stores data in flash cells that hold their charge without power, so it keeps its contents.

Statement 5 the ROM is non-volatile read-only memory whose contents survive a power-off.

Registers and cache are the fastest, smallest working stores sitting closest to the processor.

RAM is the main working memory that holds running programs and their data temporarily.

This is why unsaved work in RAM is lost during a sudden power failure while files on an SSD remain.