It is a warning about someone's paralanguage. Paralanguage is a component of meta-communication that may modify or nuance meaning, or convey emotion, such as prosody, pitch, volume, intonation etc. It is sometimes defined as relating to nonphonemic properties only. Paralanguage may be expressed consciously or unconsciously.
Your title depends on what your text and reasons are specifically about and what the information you are given is, however I would choose whichever one fits your information the best. However, they all are talking about bicycles. I would most likely choose the health benefits of bicycling.
Answer:
ferangmtz
Explanation:
Scuba is an underwater breathing apparatus which enables the diver to breathe underwater
Scuba diving is a mode of underwater diving where the diver uses a self-contained scuba, which is completely independent of surface supply.
Standards for the certification described in “Scuba Diving for Beginners” were most likely established by a ferangmtz