Emily sent the money to someone by post.
1. How do I ask the question if I need to know who sent it?
A. Was the sender of the money Emily?
B. Did Emily send the money?
C. Was it that Mary sent the money?
D. Was it Mary who sent the money?
E. Was Emily the sender of the money?
F. Was the money from Emily?
Please pick all possible answer(s) and explain your answer(s). Any better suggestion?
2. Is it OK to change 'the money' to 'this money' without changing its meaning?