An issue exists in which "reserved" key words have been used or included in the custom alias property for a downstream system. The reserved words are "Dynamic" and "MBRNAME". The steps for creating a real-time validation are: 1. Create a custom property to verify that the value input in the custom alias property does not contain the reserved words. 2. Test the custom property. 3. Create a custom Validation with the "Property Equals Value" class. 4. Test the validation. 5. Assign the Validation to a version. 

Answer options:

A. 1, 2 only
B. 3, 5 only
C. 1, 2, 3, 4 only
D. 1, 3, 5 only
E. 1, 2, 3, 4, 5

C