The reason that it is the #1 choice is that Tylenol is effective, inexpensive, does not require a prescription, and safer than the non-steroidal anti-inflammatory medications such as Aleve* (Naprosyn, naproxen sodium), Advil (Motrin, ibuprofen), and others.
A CLEC is a mini telephone company. CLEC stands for Competitive Local Exchange Carrier. The telecommunications act of 1996 had provisions in it designed to spark competition between local and long distance telephone carriers.
VTEC (which stands for Variable Valve Timing and Lift Electronic Control) is an electronic and mechanical system in some Honda engines that allows the engine to effectively have multiple camshafts.