In biological systems, lipids play crucial roles in forming cellular membranes and storing energy. Among the different types of lipids, phospholipids are especially important due to their amphipathic nature, which allows them to form the bilayer structure of cell membranes. Phospholipids consist of a hydrophilic (water-attracting) phosphate head and two hydrophobic (water-repelling) fatty acid tails. This unique structure is vital for maintaining the integrity and functionality of cellular membranes.

Consider the following statement regarding the properties of phospholipids:

Phospholipids can spontaneously arrange themselves into bilayers in an aqueous environment due to their amphipathic nature.

Which of the following reasons supports this statement?