Answer:
B
Step-by-step explanation:
A translation of 3 units up, means adding 3 to the y- coordinate of the original points while the x- coordinates remain unchanged, that is
S(1, 1) → S'(1, 1 + 3) → S'(1, 4)
T(2, - 3) → T'(2, - 3 + 3) → T'(2, 0)
U(4, 0) → U'(4, 0 + 3) → U'(4, 3)
