Answer:
The term that most represents an unhealthy body composition is fat (option A).
Step-by-step explanation:
Excess lipids and fats are considered unhealthy since they are the components associated with overweight and obesity, as well as cardiovascular and metabolic diseases.
Fats are important for the body, because of their usefulness for the structure of cell membranes, composition of necessary biomolecules —such as hormones— in addition to providing a source of reserve energy. However, the high consumption of fats promotes their accumulation in the body, with the consequences described above.
The other options are not associated with an unhealthy body composition because
B. Bones are part of the skeleton and allow body movement.
C. Muscles are also associated with movement, and exercise ensures the health of this tissue.
D. Water is necessary for living beings, and its consumption is healthy.