Question

grams of carbohydrates in 237 ml of fruit
which reason provides the best explanation of why a bar graph was selected to show the data in the table?
bar graphs are used to compare separate items.
bar graphs are used when data are continuous.
bar graphs are often used to show mass.
bar graphs are the easiest to construct and to read.

Explanation:

Bar graphs are ideal for comparing distinct categories (here, different fruits). They clearly show the differences in carbohydrate grams among separate items. Continuous data (like time - series) is better for line graphs. While bar graphs can show mass (as in this case, grams of carbohydrates which is a measure related to mass in a sense), the key strength here is comparison of separate items. And being "easiest to construct and read" is a relative statement and not the most fundamental reason compared to the comparison of separate items.

Answer:

Bar graphs are used to compare separate items.