The data in the table are the result of a paramecium being placed in a hypertonic salt solution.

salt concentration contractions per minute
outside paramecium
very



very

which statement correctly describes the bars on a bar graph representing the data?
a. the graph has five bars of equal height.
b. the bars range from tallest for very high concentration to shortest for very low concentration.
c. the bar for very low concentration is twice the height of the bar for medium concentration.
d. the bar for very high concentration is five times the height of the bar for very low concentration.