Which quotation best supports the idea that human activity can threaten the survival of sea turtles? a. "just the other day we found a nest that had been disturbed—probably by onlookers." b. "i had no idea that one day and one moment would lead me to learn so much; i also never thought that i could make a difference." c. "the beach was crowded with the usual groups of regulars and tourists. d. "…i learned a lot about sea turtles, like their amazing instincts and adaptation—that a green sea turtle could hold its breath for as long as five hours,… "