Evaluate the following statements related to group 14 elements for their correctness.

(A) Covalent radius decreases down the group from $\mathrm{C}$ to $\mathrm{Pb}$ in a regular manner.

(B) Electronegativity decreases from $\mathrm{C}$ to $\mathrm{Pb}$ down the group gradually.

(C) Maximum covalance of $\mathrm{C}$ is 4 whereas other elements can expand their covalance due to presence of d orbitals.

(D) Heavier elements do not form $\mathrm{p} \pi-\mathrm{p} \pi$ bonds.

(E) Carbon can exhibit negative oxidation states.

Choose the correct answer from the options given below :

1. A (A), (B) and (C) Only
2. B (A) and (B) Only
3. C (C), (D) and (E) Only Correct answer
4. D (C) and (D) Only