The correct options are
A During spring tides, Moon, Sun, and Earth are in a straight line.
C During neap tides, Moon, Sun, and Earth form a right angle.
Tide is the rhythmic rise and fall of ocean water twice in a day. Their level keeps changing based on the relative positions of Earth, Sun, and Moon. Tides are highest when the Sun, Moon, and Earth are in a straight line. This happens on Full Moon and New Moon days. Such tides are called spring tides. When Moon is in first or last quarter, the ocean water is pulled diagonally in opposite directions, we get very low tides called neap tides.