Final answer:
The true statement about the millennial generation is that they rival the baby boomer generation in size and potential spending clout, being technologically savvy and holding liberal social views.
Step-by-step explanation:
Among the statements provided about the millennial generation, the true statement is that this generation rivals the baby boomer generation in size and potential spending clout. Millennials, defined as those born between 1981 and 1996, are technologically savvy and often have specific expectations and habits, especially when it comes to technology and communication. They are known to use technology including mobile devices and social media extensively, which are critical components of their daily lives including their shopping experiences. Furthermore, millennials tend to have liberal views on social issues and identify more with the Democratic Party than older generations.