Answer:
C. E-mail
Explanation:
Electronic mail is the best choice to convey urgent and highly sensitive information
Answer:
constant or constant expression
register name
variable name (memory)
Explanation:
Literally, operand means data which an operation can be performed on. The operation could be an arithmetic or logical operation.
From the list of options, several operations can be performed on:
- constants e.g.

- registers and
- variables e.g. (a + b)
<em>However, no operation can be performed on keywords and/or reserved words.</em>
Answer:
The plan that includes procedures and processes that ensure the smooth functioning of the business even after a disaster is the:
business continuity and disaster recovery plan.
Explanation:
An entity that has good business continuity and disaster recovery plan maintains its full operational activities and processes after a business disaster. After the business disaster, the entity may even grow bigger, because it has identified critical functions and their dependencies for continued growth. While the period is a time of recovery, for business entities that are well-prepared, the recovery period offers a unique opportunity for innovation and rapid recovery and development on all fours: organization, processes, people, and performance.
Grace Murray Hopper invented it