In contrast to a real-time system, in a batch processing system a. relatively more resources are required b. there is a lag between the time when the economic event occurs and the financial records are updated c. processing takes place when the economic event occurs d. a greater resource commitment per unit of output is required

B) there is a lag between the time when the economic event occurs and the financial records are updated

Explanation:

Batch processing systems collect data together in a batch before the execution of the process, e. g. billing, generating reports. While real time processing happens immediately after the data has been entered, e. g. an ATM.

Batch systems usually postpone the data processing while real time processing is carried out without delay.