Apart from agriculture and fish far

Apart from agriculture and fish farming, some people in Ban Lueam district also produce salt."

Select one:
a. The occupations in Ban Leam district relate to agriculture, fish farming and producing salt.
b. The only occupations in Ban Lueam district are fish farming and producing salt.
c. The only occupation in Ban Lueam district relates to agriculture.
d. The occupations in Ban Lueam district relate to both agriculture and fish farming.