Which of the following statements are correct?

a. All the three N – O bond lengths in HNO3 are equal.
b. All P – Cl bond lengths in PCl5 molecule in the gaseous state are equal.
c. P4 molecule in white phosphorus have angular strain therefore white phosphorus is very reactive.
d. PCl5 is ionic in a solid-state in which cation is tetrahedral and the anion is octahedral.
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)