Vector u has initial point at (3, 9) and terminal point at (–7, 5). Vector v has initial point at (1, –4) and terminal point at (6, –1).
What is u + v in component form?
A. ⟨-10, -4⟩
B. ⟨-5, -1⟩
C. ⟨3, 9⟩
D. ⟨5, 3⟩