Pasta is generally a simple dish, but comes in large varieties because it is a versatile food item. Some pasta dishes are served as a first course in Italy because the portion sizes are small and simple. The servings are usually accompanied by a side of meat. Pasta is also prepared in light lunches, such as salads or large portion sizes for dinner. It can be prepared by hand or food processor and served hot or cold. When choosing which type of pasta and sauce to serve together, there is a general rule that must be observed. Simple sauces like pesto are ideal for long and thin strands of pasta while tomato sauce combines well with thicker pastas. Spaghetti is an example of a meal with tomato sauce. The thicker and chunkier sauces have the better ability to cling onto the holes and cuts of short, tubular, twisted pastas.
(Adapted from Wikipedia)
Which sentence is unnecessary and could be eliminated without disturbing the flow and information of the paragraph?

A) Spaghetti is an example of a meal with tomato sauce.
B) The servings are usually accompanied by a side of meat.
C) It can be prepared by hand or food processor and served hot or cold.
D) When choosing which type of pasta and sauce to serve together, there is a general rule that must be observed.