Find the Dot Product of the Vectors $\langle 1,2 \rangle$ And $\langle 4,5 \rangle$

Multiple Choice

Find the dot product of the vectors $\langle 1,2 \rangle$ and $\langle 4,5 \rangle$ .

A) 14
B) 15
C) 16
D) 17
E) 18
F) 19
G) 20
H) 21