Select the option that is different from the rest.

Correct option is B

Let's analyze the options:

(a) Chisel - Carpentry → A chisel is a tool used in carpentry.
(b) Missile - Trajectory → A missile follows a trajectory (path), but trajectory is not a field of work.
(c) Scalpel - Surgery → A scalpel is a tool used in surgery.
(d) Needle - Embroidery → A needle is a tool used in embroidery.
Odd One Out:
All options except "Missile - Trajectory" represent a tool and its associated field of work.
A missile is not a tool used in a specific profession—instead, it follows a path (trajectory).
Thus, the correct option is (b) Missile - Trajectory.