Determine Whether $\mathbf { u }$ Are $\mathbf { v }$ And Orthogonal, Parallel, or Neither

Multiple Choice

Determine whether $\mathbf { u }$ are $\mathbf { v }$ and orthogonal, parallel, or neither.
$$\mathbf { u } = \langle 6,4 \rangle , \mathbf { v } = \langle - 20,30 \rangle$$

A) orthogonal
B) parallel
C) neither