The correct answer is child-free. Child-free is being
defined or pertained to adults who are likely to live their own life and grow
without having to bear with children or even to live one with a child of their
own or a child.
The ANSWER is C Disadvantaged farmers (I just took the test and got it right)
Answer 4 is the correct one.
Complicated instruments can possibly produce unreliable data depending on if they were used correctly, but they don't always do so.
Simple instruments like rulers can produce unreliable data if the data required is extremely precise, such as decimal measurements, but larger measurement values are typically fine.
More expensive equipment doesn't necessarily mean that it's better, it's just what the manufacturer decided to price the equipment at.
Depending on the situation, different equipment can be better, from a ruler to a caliper.