What happens next in this paragraph?

How to meet your boyfriend's parents
Make sure you're ready.
Be patient, you don't need to meet them until you are sure things are serious in your relationship. Usually, after three of four weeks of being together, meeting the parents is a good way of moving the relationship forwards.
Available options:
[a]. However, most of the time, it should be enforced just the two before the actual introduction so that you know it is going to be good. If you do not know when you'll have the time and energy to meet them, start doing so..
[b]. This is also known as root dating because you know your boyfriend is crushing on you and want to open up to the parents. Talk with the parents you don't know who..
[c]. When you go to meet them, take a small gift. Try to find out from your partner if his parents have any favorite cookies, flowers or chocolates, or if you are going over for dinner, a bottle of wine..
[d]. The hardest thing you can do during the two weeks remaining is without meeting the parents. It may be difficult, but don't think bad of them..
[c].