A Spider Researcher, Pia Stålhandske, Knew That Males of Pisaura

Multiple Choice

A spider researcher, Pia Stålhandske, knew that males of Pisaura mirabilis offer their mates a nuptial gift-a prey item, such as a cricket-whose acceptance by the female is critical for male mating success. Males wrap their generally dark-colored food gifts in white silk. Stålhandske wondered if the males wrapped their gifts to make them look like the white, silk-covered egg sacs that mated females make and protect by holding them in their jaws until the spiderlings hatch.
The last sentence in the paragraph above constitutes

A) a causal question.
B) a hypothesis.
C) a prediction.
D) test evidence.