What significance does the painting above have?
a.
the figures are three of the most prominent female artists of the time.
b.
this painting was the first painting by a female to be displayed.
c.
it counter the restrictions placed on women artists.

C.
It helped counter the restrictions placed on women artists.

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"