IMO (C)

Monarch Butterflies

Which of the following best completes the passage below? Monarch butterflies, whose average life span is nine months, migrate from the midwestern United States to selected forests outside Mexico City. It takes at least three generations of monarchs to make the journey, so the great-great-grandchildr...

2 Party Sustem

We have heard a good deal in recent years about the declining importance of the two major political parties. It is the mass media, we are told, that decide the outcome of elections, not the power of the parties. But it is worth noting that no independent or third-party candidate has won any importan...

It has to be (A) None

As we are not sure if a = b or a = -b

IMO (A) is fine.

But you posted the question in the wrong forum meant for CR.

The definition of refusal is given in the passage. The definition same definition is used prior to 1700. Being a science student I know for sure that with force approaching infinity you can achieve further penetration.
Hence (E)

any fraction with denominators having powers of 2 and 5 only are terminating decimals

128 = 2^7
(E) is answer

INFERENCE

Mr. Janeck: I don’t believe Stevenson will win the election for governor. Few voters are willing to elect a businessman with no political experience to such a responsible public office. Ms. Siuzdak: You’re wrong. The experience of running a major corporation is a valuable preparation for the tas...