Answer:
I think its not A Or B So then its gonna be c or d and my guess is C
Explanation:
The trend of electronegativity in the periodic table is increasing from left to right and from bottom to top. In the period 4 which is horizontal, the element which has the highest electronegativity is the right most element except the noble gas. This element is bromine.
Answer:
the answer is a because cirrus clouds have that definition