Information contained in buffers or random access memory is kept until the space is written...

Scavenging refers to the process of retrieving residual data from system memory (such as RAM) or buffers. This data remains until it is overwritten or the system is powered off. Scavenging can be used by attackers to recover sensitive information such as passwords or encryption keys.

Random memory (A) is not a valid term.

Awaiting memory (C) and Search memory (D) are not industry terms.