Which One of the Following Examples Best Illustrates the Use

Which one of the following examples best illustrates the use of a personal theory as a child learns the concept spider?

A) Julian assumes that spiders must give birth to baby spiders, just as people give birth to baby people.
B) Ian learns that spiders have eight legs, whereas insects have only six.
C) Ruby learns that spiders, along with scorpions and ticks, are members of the arachnid class.
D) Dana remembers what happened when her cousin was bitten by a black widow spider.