The values of property X for five elements from the third period of the Periodic Table, P, Q, R, S and T, are shown. P, Q, R, S and T have consecutive atomic numbers. The letters do not stand for the symbols of the elements. Which row correctly identifies property X and element R?
- Aproperty X: electrical conductivity; element R: $\text{Al}$
- Bproperty X: electronegativity; element R: $\text{Si}$
- Cproperty X: melting point; element R: $\text{Al}$
- Dproperty X: melting point; element R: $\text{Si}$