Which of the following， if true， most seriously calls into question the claim that the program would make it possible for all low-income families to obtain more child care?

The average family with children under age four spends more than $1，000 a year on child care.

Some low-income families in which one of the parents is usually available to care for children under age four may not want to spend their income tax refund on child care.

The reduction in government revenues stemming from the income tax refund will necessitate cuts in other government programs， such as grants for higher education.

Many low-income families with children under age four do not pay any income taxes because their total income is too low to be subject to such taxes.（D）

Income taxes have increased substantially over the past twenty years， reducing the money that low-income families have available to spend on child care.7. Not scored8. Although parapsychology is often considered a pseudoscience， it is in fact a genuine scientific enterprise， for it uses scientific methods such as controlled experiments and statistical tests of clearly stated hypotheses to examine the questions it raises.

The conclusion above is properly drawn if which of the following is assumed?

If a field of study can conclusively answer the questions it raises， then it is a genuine science.

Since parapsychology uses scientific methods， it will produce credible results.

Any enterprise that does not use controlled experiments and statistical tests is not genuine science.

Any field of study that employs scientific methods is a genuine scientific enterprise.（D）

Since parapsychology raises clearly statable questions， they can be tested in controlled experiments.