Change management refers to
a. operational controls applied to companies after mergers or acquisitions.
b. replacement of upper management and their introduction to the organization.
c. disbursement controls on petty cash.
d. controls designed to ensure that updates in information technology do not have negative consequences.

d. controls designed to ensure that updates in information technology do not have negative consequences.

Explanation: Change management is the management of change and development within a firm, a business or an organization.

This process of management is carried out to make easy the changes from a pattern of doing things in a firm to a new method of operation easier.

In order to have a technology change in an organization, the members of that organization would have to undergo some trainings in order to effectively know how to operate the new technology in the company, this training would help to acquaint the staff of the firm with the newly introduced technology so as to avoid negative outcomes.

rain should be the answer.