Consider this reaction: 3Mg(s) + 2H3PO4(aq) → Mg3(PO4)2(s) + 3H2(g)
How many grams of magnesium phosphate should be
produced if 5.40 grams of magnesium react with excess
phosphoric acid?

(C)  Biases affect how people value others, but awareness can help reduce unequal treatment.

Explanation:

The main point discussed in the narrative is an experiment called "the trolley problem" which, ultimately, aims to discover the hidden biases of people; where, in Tiffany's experiment, these people are represented by her 300 research participants. Though her findings seem to support that people value another person's lives differently, based on attractiveness, wealth, as well as disability; she concluded that being aware of these biases help with understanding where they are coming from and creating a more equal society by preventing it from happening.