Anecdotal evidence is elucidated as the evidence that is based heavily upon personal testimony or experiences. Such evidence is collected in a very informal or casual manner through the speaker's personal observations, readings, experiences, etc. and therefore, it is highly entertaining, memorable, as well as relatable' as the readers can associate themselves with these personal experiences. However, anecdotal evidence is less reliable due to cognitive bias that allows individuals to share only notable instances rather typical ones and also because its validity can not be investigated through the scientific approach. Thus, <u>option B</u> is the correct answer.
The speaker is talking about the water. During winter, the water enters the cracks and freezes and expands. It breaks the stone and makes cracks and when the water melts the holes are bigger. What he is describing is mechanical weathering which is common in nature.
