This would be C. Forming a hypothesis.
<span>A biotic factor is a living thing in an ecosystem. The biotic factors can be separated into three different groups; producers, consumers, and decomposers. Examples of biotic factors are animals, plants, trees, bacteria, and molds.</span>
The answer to fill in the blank would be B) aka the second option because food gives our body energy and serves as fuel to recharge to give us energy to do things.
An experiment is used to establish cause and effect relationship.
<h3>What is an experiment?</h3>
An experiment is used to establish cause and effect relationship. When you carry out an experiment, you can be able to tell the effect o the dependent variable on the independent variable.
Now imagine that you want to carry out an experiment using chocolate chip cookie recipes. One is made with cake flour and the other is made with regular flour.
The independent variable is the kind of flour that was used to make the cookies.
You could make the hypothesis that cake flour works better than regular flour. After the experiment, you may now decide is the hypothesis was confirmed or disproved.
Learn more about experiment:brainly.com/question/11256472
#SPJ1