Which of the following reactant gives the best method of preparation of alkyl halides when reacts with alcohol?

Which of the following reactant gives the best method of preparation o

1.	Which of the following reactant gives the best method of preparation of alkyl halides when reacts with alcohol?
A.	Zn/HCl
B.	PCl<sub>5</sub>
C.	SOCl<sub>2</sub>/ Pyridine
D.	PCl<sub>3</sub>
Answer» D. PCl<sub>3</sub>