The correct option is A 26.18 kg
Given, diameter d=14cm.
Let r be the radius of the cone.
r=d2=142=7.
Also, height h=51cm.
Therefore, Volume of cone =π3r2h.
⇒V=π3×72×51=227×49×51×13=2618cm3.
As weight of 1cm3=10gm,
⇒weight of 2618cm3=26180gm
⇒26.18kg.
Hence, option A is correct.