Match the following columns correctly:

Column $I$	Column $II$
$(a)$ Oleic acid	$(p)$ Short-chain saturated fatty acid
$(b)$ Palmitic acid	$(q)$ Long-chain saturated fatty acid
$(c)$ Crotonic acid	$(r)$ Short-chain unsaturated acid
$(d)$ Butyric acid	$(s)$ Long-chain unsaturated fatty acid

• A
  $(a-p), (b-q), (c-r), (d-s)$
• B
  $(a-r), (b-s), (c-q), (d-p)$
• C
  $(a-s), (b-q), (c-p), (d-r)$
• D
  $(a-s), (b-q), (c-r), (d-p)$