The diagram illustrates the routes taken by three different kinds of radiation X, Y and Z as they pass through 2 mm of plastic, 10 mm of aluminium and 50 mm of lead. Which row correctly identifies X, Y and Z?
- AX: $\alpha$-particles, Y: $\beta$-particles, Z: $\gamma$-rays
- BX: $\beta$-particles, Y: $\alpha$-particles, Z: $\gamma$-rays
- CX: $\beta$-particles, Y: $\gamma$-rays, Z: $\alpha$-particles
- DX: $\gamma$-rays, Y: $\alpha$-particles, Z: $\beta$-particles