Exhibit 18-3 Consider the Data Below to Answer the Following Question(s)

Exhibit 18-3
Consider the data below to answer the following question(s) .
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Epoxides are synthesized industrially in one step by silver oxide air oxidation of ethylene and on a laboratory scale in one step by treating an alkene with m-chloroperoxybenzoic acid.An alternative two-step process converts alkenes to halohydrins,which are converted by treatment with base to epoxides.
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-Refer to Exhibit 18-3.The synthesis of epoxides by base treatment of halohydrins is an example of an intramolecular:

A) S_N1 reaction
B) hydrolysis reaction
C) dehydration reaction
D) Williamson ether synthesis