{ 1 } - gives us solid guidance on how to develop wise and responsible feelings.
{ 2 } - tells us to follow our feelings.
{ 3 } - both of the above.

Subjectivism tells us to follow our feelings, but it says nothing about how to develop wise and responsible feelings.

Suppose that Ima's irresponsible friends like to get drunk and hurt people. On subjectivism, they could then conclude that such actions are good. But this reasoning isn't correct: the conclusion doesn't follow. SB gives a very crude approach to morality, whereby we simply do as we like.