complete the program to print the initials of a person's first and last name using lowercase letters.
a) print(initials(firstₙame, lastₙame) )
b) print(firstₙame[0] + lastₙame[0])
c) print(firstₙame[:1] + lastₙame[:1])
d) print(firstₙame[0].lower() + lastₙame[0].lower() )
