The teacher explained that this topic would be on the test, so everything they were learning that day was what?\nOptions:\n- joyful or painful\n- very important\n- exposure\n- fun\n- free
Think hard. Detailed solution:
very important
Very important is something that is important, is very significant, is highly valued or is necessary.

The teacher explained that this topic would be on the test, so everything they were learning that day was very important.

.

Final answer: very important