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The three classes of levers:

Class 1 — Fulcrum between Effort and Load (e.g., scissors, seesaw): EFL or LFE
Class 2 — Load between Effort and Fulcrum (e.g., nutcracker, wheelbarrow): ELF or FLE
Class 3 — Effort between Fulcrum and Load (e.g., tweezers, tongs): FEL or LEF

Tweezer:

The closed/pinched end is the Fulcrum (hinge point at the top)
You squeeze in the middle → that is the Effort
The tip that grips the object is the Load
Order from top to bottom: F → E → L = FEL ✓

Nutcracker:

The hinge at one end is the Fulcrum
The nut sits close to the hinge → that is the Load
You squeeze the long handles at the far end → that is the Effort
Order from hinge outward: F → L → E... but reading from Effort end: E → L → F = ELF ✓

Answer: B — Tweezer = FEL, Nutcracker = ELF

A lever mechanism has Effort (E), Fulcrum (F) and Load (L). For example, a pair of scissors will have an order 'EFL' as shown in the image below. Similarly, choose the correct order for a Tweezer and a Nutcracker.