Official Solution:
It is hypothesized that children with a special condition called Colourshift syndrome have different perceptions of color than ordinary children - these special children perceive the ordinarily perceived red as green and the ordinarily perceived green as yellow. A particular child was given a real red rose with green leaves and was asked to draw it using coloring pencils. The child drew a green rose with yellow leaves. From this drawing, it was concluded that the child must be one of those special ones with Colourshift syndrome.
If the hypothesis about Colourshift syndrome mentioned in the above passage is true, then which one of the following, if also true, indicates the flaw in the above conclusion?
A. When asked to draw a red rose with green leaves, some children drew a green rose with red leaves.
B. The children with Colourshift syndrome see the colors of the paints or pencils they use to draw the same way they see the colors of other real-life objects.
C. Colourshift syndrome is acquired only by birth.
D. The child had color blindness and could not distinguish blue from green.
E. In some children's storybooks, the colors of some objects portrayed are different from the colors of those objects in real life.
A. This option is not relevant to the flaw in the conclusion. It just provides an example of what some other children drew, without addressing whether the child in question has Colourshift syndrome or not.
B CORRECT. This option is correct. If this is true, then the child would perceive the RED Rose as Green. Similarly, the same child would perceive a Red coloring pencil as a green. They would perceive both the Rose and the Pencil as Green. Thus, the child would reach out for what they think is a Green Pencil to draw the Rose that they perceive as Green. If this is the case, then the child reaching to what they perceive is a Green Pencil, will actually reach for the Red pencil (which they perceive as Green). The resulting drawing would still depict a red rose with green leaves, not a green rose with yellow leaves. This option explains the flaw in the conclusion since a child who would see both the Red Rose and the Red Pencil as Green and their drawing would not be using the Green color pencil (esp since the Child perceives Green as Yellow).
C. This option is not relevant to the flaw in the conclusion. It simply provides information about how Colourshift syndrome is acquired, without addressing the validity of the conclusion itself.
D. This option is irrelevant to the Colourshift syndrome and the specific colors involved in the hypothesis. The hypothesis discusses the perception of red as green and green as yellow. If the child had color blindness and was unable to distinguish blue from green, he would have mistaken green for blue, not yellow. Therefore, this option does not address the flaw in the conclusion related to Colourshift syndrome.
E. This option does not reflect a flaw in the argument as such. The child was not asked to draw something from a storybook, but he was given a real red rose with green leaves to draw.
Answer: B