The following is a list of six control plans, and these are followed by a list of five definitions or descriptions of control plans.

Match the five definitions or descriptions with a control plan that best matches the definition. Because there are six control plans, you should have one letter left over.

Control Plans

A. Limit checks

B. Tickler files

C. Public key cryptography

D. Compare input data with master data

E. One-for-one checking

F. Manual reconciliation of batch totals (hash totals)

Definitions or Descriptions

1. Determines if a customer number has been input correctly.

2. Ensures that transmitted