A student collects data on spring and neap tides, in feet, on four different days of the same year in Anchorage, Alaska. The graphs of her data are shown below.

Modified from image courtesy of NOAA

Based on the data given, which statement is true about the tides?
A.
September 9 and 24 represent spring tides due to the added gravitational pull of the Sun.
B.
September 16 and October 2 represent neap tides due to the added gravitational pull of the Moon.
C.
September 9 and 24 represent neap tides due to the added gravitational pull of the Moon.
D.
September 16 and October 2 represent spring tides due to the added gravitational pull of the Sun.

A. September 9 and 24 represent spring tides due to the added gravitational pull of the Sun.