Can some explain this to me do i need to covert something or can someone explain it to me how in gonna get the answer i try to do it and i got 60 and i think it is wrong

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis