can you please check my answer and help me answer the second question!!!!

What are the disadvantages of hard links that symbolic links overcome. Select all that apply Hard links cannot link to files that have .txt extension. Hard links cannot span physical devices. Hard links are more difficult to write Hard links cannot reference directories, only files. I have a file named test.bt inside of a folder name test1. I also have a folder named test2. Both test and test2 are in a folder named playground, Tam inside of playground and I want to move test.txt from test to test2 in one command. How do I do it? Oop.r testi test2 my testt/test.txt test2 mv test 1 test2/test.txt cp testest.txt test2