Final answer:
The Union Jack should be flown five minutes before morning and evening colors.
Step-by-step explanation:
The pennant that should be flown five minutes before morning and evening colors is the Union Jack. The Union Jack is the flag of the United Kingdom and is commonly flown on naval vessels. It is raised and lowered as part of the flag ceremony, which includes morning and evening colors. The Commissioning Pennant is flown on a ship to indicate that it is in commission or active service. The Church Pennant is flown to indicate that religious services are being conducted on board. The Jackstaff Pennant is flown on the jackstaff of a naval ship to identify its nationality.