Which is the most valid counterargument for the claim that the three mile island accident proves that nuclear power is unsafe?
a. nuclear plants no longer use nuclear fission.
b. the accident only released harmless gamma rays.
c. the three mile island reactor did not use fuel rods.
d. no one was actually harmed in the three mile island accident.

The correct answer is D) No one was actually harmed in the Three Mile Island accident.

The most valid counterargument for the claim that the Three Mile Island accident proves that nuclear power is unsafe is"No one was actually harmed in the Three Mile Island accident."

Dauphin county, in Harrisburgh, Pennsylvania is the place where the Three Mile Island Nuclear Generation Station is located. An accident known as The Three Mile Island accident occurred on March 28, 1979, when reactor number 2 was partially melted.   The accident was rated "five" in the International Nuclear Event Scale. No one was harmed, that is why the most valid counterargument for the claim that the Three Mile Island accident proves that nuclear power is unsafe is"No one was actually harmed in the Three Mile Island accident.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation:

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate