Final answer:
Static stretching is holding a stretch without moving and can be beneficial after warming up the muscles. It can potentially cause pulling or tearing if done improperly. Understanding muscle elasticity is important for proper stretching.
Step-by-step explanation:
Static stretching, which involves holding a stretch without movement, is beneficial to exercise and stretching routines. However, it's not true that it causes muscles to tighten (A) or includes bouncing while stretching (D); the latter is known as ballistic stretching. It is not the most recommended type of stretching (B) universally, as the best type of stretching can vary depending on the individual and the activity.
If performed improperly or without a proper warm-up, static stretching can cause pulling or tearing (C), leading to injuries such as strains or even tendinitis. Understanding muscle elasticity, the ability of muscles to return to their original length after being stretched, is important in recognizing the role and benefits of proper stretching.