Name hit1 hit2 hit3 hit4
a 1 2 4 1
c 2 2 2 2
b 2 2 3 3
a 1 1 2 1
c 1 2 1 2
a 3 1 1 1
b 2 2 2 2

Which advance function of excel can be used to find How many times 'a' is
having '1' in each column(hit1,hit2,hit3,hit4) data?