What type of sentence is the following: Look, you can believe me when I tell you I have personal experience with this sort of thing.
a. Formal diction that includes technical language
b. informal diction that expresses a controversial tone
c. informal diction that include colloquial terms

Which statement contains an opinion? the ants serve to protect the acacia from other plants and herbivores. the acacia depends on pollinators for the exchange of genetic material. the acacia has no chemical defenses to discourage herbivores. the ants provide the acacia with the best protection from other plants and herbivores.