Organic Chemistry

I am really not certain on the following question:

Which compounds contain stereocenters??

I) 1-chloropentane
II) 2-chloropentane
III) 3-chloropentane
IV) 1,2-dicloropentane

a)-> I, II
b)-> III, IV
c)-> I, III
d)-> II, IV

I) 1-cloropentane has sterocenters...right?

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  1. should it be: 2-chloropentane & 1,2-dichloropentane???
    ie. "D" ??? I don't think that it could be "I or III"

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  2. ignore this post.

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