One ninth divided into nine sixths equal what and reduce to lowest term

You transform it to a multiplication by multiplying the first term (in this case 1/9) by the inverse of the second term (which is in this case 9/6, his inverse is 6/9)
so we get 

then you divide each number by 3, So we get

Hope this Helps :)

The smaller number is the atomic number or the number of protons and the larger number is the atomic mass.

Explained:

The number with a lower value is the number of protons and the number with a higher value is the mass.

 

The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties.

 

The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.