Answer:
d. Bromine
Step-by-step explanation:
Electronegativity
Electronegativity describes the tendency of an atom to attract electrons.
The electronegativity trend on the periodic table goes up and to the right.
Thus, when we locate all the given elements on a periodic table, we can see that bromine must be the most electronegative. This means that it has the greatest ability of attract electrons.
This makes sense, as bromine is a halogen. Halogens only need 1 more valence electron to complete a full octet, so they really want an electron.