As it is presented in the passage, the approach to history taken by mainstream U.S. historians of the late nineteenth...

Ravi on January 11 at 08:39PM

@msegura

Happy to help!

Both J and M can be in 4. Rule number 3 states that if J is in 1, H is in 2.

The stimulus says that H is in 2, so the necessary condition of the
rule is satisfied. What happens when the necessary condition is
satisfied? The rule goes away, so J is free to go in spots other than
the first spot.

It sounds like you may have confused the meaning of this rule. The
only two things we can conclude from rule 3 (if J is in 1, then H is
in 2) are what the rule states and what the contrapositive of the rule
is (if H is not in 2, then J is not in 1).

Since we know H is in 2, then it doesn't matter whether or not J is in
1, as the necessary condition of the rule has been satisfied. This is
why answer (C) is correct, as both J and M can be in 4.

Hope this helps. Let us know if you have any other questions!

maritza on January 14 at 04:12PM

Thank you, that clears up my confusion