The body of an adult person is composed of how much fluids?  a40% b70% c60% d80%

Step 1: Break Down the Problem

We need to determine the percentage of body fluids in an adult human, and we have four options to choose from.

Step 2: Relevant Concepts

The typical composition of an adult human body includes a certain percentage of water. Research indicates that adults are generally composed of 50-70% water, depending on various factors such as age, sex, and body composition.

Step 3: Analysis and Detail

• Adults' Average Body Fluid Percentage: It is commonly accepted that around 60% of an adult's body weight is water.
• Variations:
  • Males typically have a higher percentage of body fluids compared to females, often around 60% vs. 55% due to differences in body fat composition.

Step 4: Verify and Summarize

Given the usual understanding and findings in biology and human physiology, the most accurate option from the list provided is c) 60%.

Final Answer

The body of an adult person is composed of approximately 60% fluids (c).