Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2np5 Enter the group number corresponding to the electron configuration.

a. [Noble gas] ns^2 np^5
b. [noble gas] ns^2 (n-1)d^2
c. [noble gas] ns^2 (n-1)d^10 np^1
d. [noble gas] ns^2 (n-2)f^6