Yes the correct answer is "said" (b). If you get stuck on a similar question, it helps to read the sentence with each comma to hear which makes sense.
Answer:
I dont think this is right but I think that people should studies
<span>stainless jewelry does not have the same luster or shine as other metals but some prefer its slightly more metallic appearance and it is particularly popular amongst men. stainless steal jewelry is more jewelry than gold and silver pieces and will not tarnish or rust as easily</span>