This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to make homemade popcorn
Gather your supplies.
To make homemade popcorn, you'll first need the proper supplies. You can find most supplies to make homemade popcorn at a local supermarket.

Available choices:
a). You will need the following : A bag of corn kernels cooking oil, such as canola oil, vegetable oil, or olive oil two large bowls oven mitts Measure out your popcorn and oil. You want to make sure you have the proper kernels to oil ratio before making your popcorn.;
b). For the ingredients you'll need, however, you'll need the following items : 2 cups of red food coloring the needle of a funnel, measuring cup, cooking thermometer 1 large bowl Heat the butter and butter together. In a larger bowl, put the shortening and melted butter together.;
c). To make popcorn, you'll need : 2 cups of soda popcorn or zest 3 oz of half-and-half Heat the olive oil in a large skillet over medium high heat. You'll need one large skillet that is double-rimmed.;
d). You'll also need enough container to hold 8 ounces of popcorn that is approximately 135 g (100 g). You'll also need supplies like a plastic container to hold the popcorn, so prepare the container or dish instead.;
The answer is:
a).