Answer:
A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.
The correct option is CHINESE.
Chinese is the most spoken language in the world and it always comes on top of the list of the most common languages in the world. Although the language has many dialects, but put together, about 1.2 billion native speakers speak Chinese language. Mandarin is the most common dialect of the Chinese language.
Im pretty sure its the first one best of luck hope i helped :)
Perhaps they could place Dana in a special care program that caters to children with his characteristics, and people that are experienced and educated in solving behavioral issues related to young children. They could also have him evaluated for mental conditions such as ADHD, and have a doctor prescribe special care for the condition such as medication or a children's program.