How would the developer change the time to fall back one hour?

A developer wants to transform the date and time ‘Data_Enrolled’ from Daylight Savings time.

How would the developer change the time to fall back one hour?
A . %%=DataAdd(Date_Enrolled,-1)=%%
B. %%=DateAdd(Date_Enrolled,-1 ‘H’)=%%
C. %%=DateDiff(Date_Enrolled, 1, ‘H’)=%%
D. %%=FormatDate(Date_Enrolled,-1,’HH’,’en-us’)=%%

Answer: B