Answer:
a. It must be given without any characteristics of control left with the giftor.
b. The item cannot be exchanged for an agreement to provide a contra gift or service.
Step-by-step explanation:
According to the Internal revenue system (IRS) gift means any transfer made to an individual either in direct way or indirect and the full considered would not be collected in return. In other way, lets take an example that you gave a big amount check and gift some investment to the individual other than your dependent or your wife so here it means you gave a gift
Therefore the option a and b is correct