Diseases that can be controlled by are considered environmental health concerns. a. improving sanitation in large urban areas
b. treating water
c. manipulating the environment
d. providing adequate health services to screen for and control diseases
e. all of the above

pls help fast im rly stuck :)

What are the options?

Hope this will !

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.