Hi, I think the correct answer here would be C. It makes the most sense. A and B are definitely incorrect and D is an opinion.
Answer:
D) having vague goals
Explanation:
By the definition of the words, "Vague" shows unclear vision. Without a clear goal in mind, many undertakings end up wandering aimlessly.
Answer:
a comparison of daily temperature in June
Explanation:
it's over the course of a month & temperatures change
Past tense because the verb isolated is written that way.