Is D7 a pass for O level

The grading system for the Singapore-Cambridge GCE Ordinary Level (O-Level) examinations was as follows:

A1: Distinction
A2: Very good pass
B3: Good pass
B4: Satisfactory pass
C5: Pass
C6: Pass
D7: Pass
E8: Ungraded
F9: Fail

So, yes, D7 is considered a pass for the O-Level examinations in Singapore.