They can explain to their children that they can tell them their problems.
A person who studies word origin and how the meanings change over time are Etymologists. So your answer would be C. The other options don't apply and a rootier as funny as it is there is no such thing.
Hope this helps, if you need anymore help or further explanation just let me know!! :)
If the sentence is: A school's right to search student lockers to keep things safe for the community might be a necessary thing. Then the best revision would be C. <span>is necessary to maintain a safe environment for students. Therefore, the whole revised sentence would be like this: A school's right to search student lockers is necessary to maintain a safe environment for students. The A option is wordy, and B sounds too bureaucratic and technical.</span><span>
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