Final answer:
The correct expression to write vector A in terms of the other vectors is option C: A = B - C + D.
Step-by-step explanation:
In the given options, the correct expression to write vector A in terms of the other vectors is option C.
A = B - C + D
This means that vector A is obtained by subtracting vector C from vector B and then adding vector D to the result.
For example, if vector B is (3, 2) and vector C is (1, 4) and vector D is (-2, 1), then vector A would be (3, 2) - (1, 4) + (-2, 1) = (0, -1).