down
up
upon
on
Answer is Right!
Answer is Wrong!
The correct answer is: D. on
The preposition “on” is used to indicate the cause or reason for something. In this case, the speaker is saying that the person’s success was due to their hard work.
The other options are not correct because they do not make sense in the context of the sentence.
- “Down” is used to indicate a decrease in something. For example, “The price of oil went down.”
- “Up” is used to indicate an increase in something. For example, “The price of oil went up.”
- “Upon” is used to indicate a position on top of something. For example, “The book is upon the table.”
I hope this helps!