Read this excerpt from a passage.
"People around the globe began to notice and to speak out against the possible disappearance (or extinction) of the African elephant. Finally, the world acted. In 1990, the Convention on International Trade in Endangered Species (CITES), a United Nations effort, banned the ivory trade worldwide. As a result, elephants started to make a comeback. By 1999, their population had returned to approximately one million."
Which sentence from this excerpt is not objective?
a)"Finally, the world acted."
b)"As a result, elephants started to make a comeback."
c)"By 1999, their population had returned to approximately one million."
d)"In 1990, the Convention on International Trade in Endangered Species (CITES), a United Nations effort, banned the ivory trade worldwide."