In a process, a variable called "Timestamp" of type DateTime is used.

Comprehensive and Detailed Explanation:

To format a DateTime variable (Timestamp) as "yyyy-MM-dd hh:mm", we use the .ToString("format") method.

Correct Format:

Timestamp.ToString("yyyy-MM-dd hh:mm")

yyyy → Year (4 digits)

MM → Month (2 digits)

dd → Day (2 digits)

hh → Hour (12-hour format)

mm → Minutes (2 digits)

Why the other options are incorrect?

Option A (Timestamp.ToString("yyyy MM dd hh mm")):

Incorrect separator (space instead of - and :).

Option C (Timestamp.CompareTo("yyyy-MM-dd hh:mm")):

CompareTo() is used to compare DateTime values, not to convert to a string.

Option D (Timestamp.ToString(), "yyyy-MM-dd hh:mm")):

Incorrect syntax: extra comma (,) – this would cause an error.