There are eight people. This question tells us H, K and L give morning reports.
So five people are left for the afternoons. But rule 2 tells us that O and R can’t give afternoon reports.
So only three people are left for the three afternoon spots: I, G and N.
G has to go on Tuesday. That means N has to go on Wednesday. If N went on Monday, rule 3 would knock G out of Tuesday.
Therefore, I presents on Monday; it’s the only remaining afternoon spot. B is CORRECT.
Here’s the diagram. It doesn’t matter what order H, K and L go in, as long as they are in the mornings.
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