Explanation:

The correct answer is option 'C', which is "depressed / a bit happier".

The sentence is comparing the speaker's appearance in the morning and now. The first word in the sentence is "looked", which is in the past tense, indicating that the speaker's appearance has changed since the morning. The second part of the sentence is "but you look", which is in the present tense, indicating the speaker's current appearance.

To determine the correct answer, we need to look at the two options and decide which one makes the most sense based on the context of the sentence.

Option 'A' is "depressing / a lot happier". This option implies that the speaker looked depressed in the morning but is now a lot happier. However, the sentence does not provide any context as to why the speaker is happier, so this option is not the best choice.

Option 'B' is "happier / a bit depressing". This option implies that the speaker looked happier in the morning but is now a bit depressing. Again, there is no context provided as to why the speaker is now depressing, so this option is not the best choice.

Option 'C' is "depressed / a bit happier". This option makes the most sense because it implies that the speaker looked depressed in the morning but is now a bit happier. This option also fits with the idea that the speaker's appearance has changed since the morning.

Option 'D' is "depressed / much happy". This option implies that the speaker looked depressed in the morning but is now much happier. However, as mentioned previously, there is no context provided as to why the speaker is now happier, so this option is not the best choice.

Option 'E' is "a bit happier / more depressing". This option implies that the speaker looked a bit happier in the morning but is now more depressing. Again, there is no context provided as to why the speaker is now more depressing, so this option is not the best choice.

In conclusion, option 'C' is the correct answer because it makes the most sense based on the context of the sentence.