Xamine the image of the hertzsprung-russell diagram.

the h-r diagram. the y axis shows luminosity in solar units increasing in increments of the power of 1 from 10 from bottom to top. the x axis shows surface temperature in kelvin, decreasing from left to right. supergiants are yellow white, luminosity between 10 superscript 4 solar units and 10 superscript 5 solar units. main is blue white, luminosity 10 superscript 4. sequence is blue white, luminosity 10 superscript 3. giants are red and orange, luminosity between 10 superscript 2 and 10 superscript 3. sun is yellow, luminosity between 1 and 10. ab doradus c is red, luminosity 10 superscript negative 3. white dwarfs are blue, blue white, white, yellow white, and yellow, luminosity from 1 to 10 superscript negative 4.

which characteristic describes the stars indicated by the arrow in the image?

cool
hot
large
small