Qlik Exam QSDA2019 Topic 8 Question 1 Discussion

Refer to the exhibit.

This table contains information about the number of admissions and discharges of patients in a hospital. The values can be positive or negative. The data architect needs to create an extra column that contains the number of patients that are currently in the hospital.

Which script should the data architect use ?

A)

B)

C)

D)