Answer:
The correct answer is C,Nancy's IQ in preschool is not necessarily a good reflection of her capability in sixth grade
Step-by-step explanation:
The IQ score recorded about six years ago cannot be a good yardstick for the current class, the time period is long enough for Nancy's disposition to learning to alter.
It could also be that her parents were keen in ensuring her academic success then by giving her special attention which no longer exist.