Pretty sure it is C because it it divisible by 3. If you divide 15 you get 5 and if you divide 6 you get 2.
The Camp Meeting Chorister<span> is a collection of hymns and spiritual songs printed and published by John Clarke of Philadelphia, PA, in 1830, with stereography done by Lawrence Johnson, also of Philadelphia. </span>
Thats kinda hard ask the teacher
The Cuba unified the issues during the Spanish American war in April 1898