Researchers Asked College Students to Look at Slides of Either

Researchers asked college students to look at slides of either beige pens or blue pens while either popular or unfamiliar music played in the background. Later, when allowed to choose a pen:

A) almost all the students chose the colour of pen that was opposite to the colour seen in their slides.
B) almost three-fourths of the students chose the blue pen, assuming that the colour of pen matched the colour of the ink.
C) about one-quarter of those who heard the unfamiliar music chose a pen that differed in colour from the one seen in their slides.
D) almost three-fourths of those who heard the popular music chose the colour of pen seen in their slides.