Pls answer asap

The mean deviation about mode for the numbers $\frac{4}{11},\frac{6}{11},\frac{8}{11},\frac{9}{11},\frac{12}{11},\frac{8}{11}$ is
(a) $\frac{1}{6}$
(b) $\frac{1}{11}$
(c) $\frac{6}{11}$
(d) $\frac{5}{11}$