I believe its c. adjective phrase Because "of a landscape" describes what kind of picture is to be drawn. And Adjectives describe.
Vanquished means to be conquered or defeated, so it is B. You could say the ememy has been vanquished or conquered.
The correct version is there are many threats to dolphins' continued existence, and humans are just one.
The Third! We did this recently:) have a good day! hope this helps
Answer:
that he probably wasnt or didnt think he was alone
Explanation: