Answer:

1.The appropriate universal set for the set of officers in a class would be the set of all individuals in the class, including both students and non-students who may be serving as officers.

2.The appropriate universal set for the set of people in District II of City of Manila would be the set of all individuals who reside, work, or frequent District II of City of Manila.

3.The appropriate universal set for the set of vehicles for land transportation in the Philippines would be the set of all vehicles that are legally registered and authorized for use on Philippine roads.

4.The appropriate universal set for the set of Globe network cellular numbers would be the set of all possible cellular numbers that can be assigned by Globe network, including both existing and potential numbers.

5.The appropriate universal set for the set of vowels in the English alphabet would be the set of all letters in the English alphabet, which includes both consonants and vowels

hopefully this helps :D