Consumers cannot find enough of a popular new toy in stores. This is because they sell to fast which makes them harder to find.
The answer in the first sentence above is hypothesis because it is defined as having to state a prediction or conjecture in regards about an experiment whereas the second sentence' answer is experimental question because researchers tend to state what they plan to do in regards of their investigation and they do not apply any predictions in the experiment.
I believe the answer is A.
Over 330 million people. It is estimated that there are 447 native Spanish speakers in the world.