Final answer:
Performing an elasticity test before perming hair is crucial to determine the hair's condition and its capacity to endure the perm process. This can prevent further damage and ensure optimal results.
Step-by-step explanation:
The answer is A True. It is important to perform an elasticity test before undergoing a chemical hair treatment such as a perm. An elasticity test can help determine the condition of the hair and its ability to withstand the chemical process. This test involves stretching a strand of hair to see how far it will stretch before returning to its original length or breaking. Healthy hair will typically stretch up to 50% of its length and return to its original form without breaking. If the hair is in poor condition and lacks elasticity, perming may cause further damage, including breakage or undesired results. Therefore, this test is a crucial step in ensuring that the hair can handle the perming process without being adversely affected.