Choose the correct answer from the given four options: A cylindrical pencil sharpened at one edge is the combination of (A) a cone and a cylinder (B) frustum of a cone and a cylinder (C) a hemisphere and a cylinder (D) two cylinders.
Choose the correct answer from the given four options: A cylindrical pencil sharpened at one edge is the combination of (A) a cone and a cylinder (B) frustum of a cone and a cylinder (C) a hemisphere and a cylinder (D) two cylinders.

(A) a cone and a cylinder
NCERT Exemplar Class 10 Maths Chapter 12 Ex. 12.1 Question 1

The Nib of a sharpened pencil = conical shape

The rest of the part of a sharpened pencil = cylindrical

Therefore, a pencil is a combination of cylinder and a cone.