A square lamina is rotating about any axis perpendicular to its plane . The temperature is increased by $\;\bigtriangleup t\;$ , its moment of inertia $\;(I_{0})\;$ will increase by - (side of square lamina =a )

Question

$(a)\;2I_{0} \alpha \bigtriangleup t\qquad(b)\;I_{0} \alpha \bigtriangleup t\qquad(c)\;Depends\;on\;the\;value\;of\;'a'\qquad(d)\;None\;of\;these$