What is the total amount of calories derived from protein in a 250 ml serving of canned soup?

To determine the total amount of calories derived from protein in a 250 ml serving of canned soup, it is essential to know the protein content present in that serving. Typically, protein contains approximately 4 calories per gram. By assessing the grams of protein in the soup, you can calculate the calories from protein by multiplying the grams of protein by 4.

Assuming the protein content of the soup is relatively low (which is common for many canned soups), a calculation that yields 10.8 calories from protein could result from a protein quantity around 2.7 grams. This fits within the usual protein range found in canned soups, making this answer plausible.

There is a variability in protein content across different types of canned soup, so without specific information about the protein content in the exact soup being referenced, generally lower values might appear appealing. However, considering the options provided, 10.8 calories corresponds most accurately to a reasonable estimate of protein-derived calories based on typical nutritional values found in such products.