Multi-choice problem: Continue writing the next sentence in this paragraph:

How to deal with not being thanked for a gift
Find a quiet, private place to talk.
If you decide to confront the person you gave the gift to about their lack of thanks, do so face to face and in a private spot. You may choose a neutral spot, like a coffee shop or a park bench.

Available options:
a). Or you may invite the person over for coffee or dinner at your home and have the talk then. Try to choose a setting where you can talk honestly and freely with the person.;
b). Begin by asking the person to excuse themselves for a few minutes, and then casually start the conversation. You could make a text conversation, a letter to someone on facebook, a phone call, or just keep the conversation short and to-the-point.;
c). If you want a private moment with them outside or if you don't know them very well, you may try somewhere they won't be distracted by. If you are having a particularly difficult conversation, find a place where they will be free to talk.;
d). If you are feeling tense or insecure right when you approach the person, consider a place with little emotion or a quiet place where you can keep your thoughts and feelings calm. Having communication with this person over text, email, or phone may also have an effect.;
a).