Finite sets are sets whose elements can be counted. Which of the following is an example of FINITE SET?

A. Set of real numbers
B. C = {0, 1, 2, 3, 4,...,100}
C. Set of rational numbers
D. A = {1, 2, 3, 4, 5, 6,...}

What is the cardinality of set A = {x ∈ N | 5 < x < 15}?

A. 11
B. 9
C. 10
D. 12

Given D = {1, 2, 3, 4, 5} and E = {2, 1, 3, 4, 5}. Which of the following is TRUE?

A. D ⊂ E
B. E ⊆ D
C. D ⊄ E
D. E ⊂ D​