PROM, EP-ROM, & EEPROM are the examples of-

A. ROM is the example of PROM , EP-ROM, & EEPROM.
where ,
PROM - (programmable read-only memory) is a memory chip on which data can be written only once. Once a program has been written onto a PROM.
EPROM - (erasable programmable read-only memory) is a special type of PROM that can be erased by exposing it to ultraviolet light. Once it is erased, it can be reprogrammed.
EEPROM - (electrically erasable programmable read-only memory). Pronounced e-e-prom, an EEPROM is a special type of PROM that can be erased by exposing it to an electrical charge.