In a Survey Undertaken by a University to Gauge Student

In a survey undertaken by a university to gauge student satisfaction in its online MBA program, one question asked students to indicate the number of credits they had transferred
Into the program.Which of the following is true?

A) This variable is categorical.
B) This variable is transactional.
C) This variable is quantitative.
D) This is an identifier variable.
E) This variable is nominal.