“International Day of Women and Girls in Science” is observed on _______ date ?

(a)  9 February
(b) 10 February
(c)  11 February
(d) 12 February

The UN General assembly on 22 December 2015 decided to establish the International Day of Women and Girls in Science to recognise the critical role that women and girls play in science and technology. UNESCO and UN Women celebrate it on 11 February annually.