Six subspecies of tigers are endangered due to "a rise in hunting an the deforestation of their habitat" ("tigers" 1354-1355).
what change, if any, should be made to the citation at the end of this sentence?
oa. ("tigers" on 1354 and 1355)
ob. ("tigers" pg. 1354-1355)
oc. .
no change
od. ("tigers", 1354, 1355)