Clarification on super scoring.

Yes, I know MIT superscores the ACT, but what does that really mean.
From MIT admissions “we will consider the highest score achieved in each section.”
So, when calculating the superscore, does MIT take the highest score from each section and recalculate the composite with those highest scores? Or, does MIT take the highest score from each section and the highest composite?
To make this very clear, I’ll present a situation.

Student A took the ACT 2 times.
1st take
30E 25M 32R 28S so, composite 29
2nd take
28E 31M 25R 31S so composite 29

Which of the following will the admissions team see?

Option A :30E 31M 32R 31S Comp 29

or

Option B : 30E 31M 32R 31S Comp 31

Also, another question, does superscore always mean the same thing when it comes to the ACT?
For instance, would every school that superscores the ACT show their admissions the same testing results in the situation above?

Might be a silly question, but no harm in asking.

For the SATs, the second, so I assume so for the ACT also. They never asked for a composite score, just the score for each section and when it was achieved.

For the SATs, the second, so I assume so for the ACT also. They never asked for a composite score, just the score for each section and when it was achieved.

Edit: Sorry guys was looking at posts from bottom; didn’t notice this was a repeat. Maybe delete the tread?