Answer:
True.
Step-by-step explanation:
The Selective Service is a US agency that maintains information about male citizens who are of age suitable for military recruitment. Currently, this information is about individuals aged between 18 and 25 years old, who are required to register with a military base and can be summoned whenever the country needs them.
By law, registration with the Selective Service must be done whenever a male American citizen reaches the age of 18.