Which row gives the correct frequency in Hz for each of the four principal radiations?
- AX-rays $10^{10}$, ultraviolet $10^{14}$, microwaves $10^{18}$, infra-red $10^{15}$
- BX-rays $10^{14}$, ultraviolet $10^{18}$, microwaves $10^{15}$, infra-red $10^{10}$
- CX-rays $10^{15}$, ultraviolet $10^{10}$, microwaves $10^{14}$, infra-red $10^{18}$
- DX-rays $10^{18}$, ultraviolet $10^{15}$, microwaves $10^{10}$, infra-red $10^{14}$