Which of the Following Is an Example of Quantitative Research

Which of the following is an example of quantitative research?

A) A person's genealogical record, in which they trace their family history and identify different members of their family
B) A survey in which people are asked to indicate how much they trust a number of different politicians using a scale of 1-5, with 1 = not at all to 5 = entirely
C) Watching every episode of The Simpsons in order to understand how the father-son relationship on TV's longest-running animated show has changed since it debuted in 1989
D) Asking people who travel with service dogs for the top 10 words that describe their relationship with their service dog