Answer :

konrad509
[tex]\hbox{reciprocal of } a=\frac{1}{a}\\ a=\frac{1}{6}\\ \frac{1}{a}=\frac{1}{\frac{1}{6}}=1\cdot6=6 \Rightarrow C[/tex]
reciprocal is where you flip the fraction so 1/6 becomes 6/1
C. 6