Answer:
Step 1: Â Determine which options are correct Â
What will the economy be like in the future? Â
- Option A: Â too broad
How can virtual reality be used in health care? Â
- Option C: Â effective
How many gallons of water will we use in 2025? Â
- Option B: too narrow
What are the best strategies for increasing food production in the future? Â
- Option C: effective
For the first question, the reason why it is too broad is because the economy in the future is a huge topic. Â It will not be able to be covered in one topic. Â In questions two, the reason why the answer is effective is because this is a specified research question in a wide category. Â For the third question, the answer is too narrow because there is really no use of knowing how much gallons of water we will use in 2025. Â Finally, in the fourth question the answer is effective because it is a specified research question in a specific topic/category.
See the attachment for clarification
