The greatest danger facing by the most endangered species is Capture for trades
Disease
Species loss

species loss

Explanation:

it is because they are in least number . They can't produce their young one in large numbers so they are vanishing from planet earth.

all three options are correct

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.