$5\mathrm{.}1$ Using the concept that "Risk $=$ Frequency $x$ Consequence", select one basic event from your model as an appropriate example for each of the two following criteria. There are multiple options for each of the two. Explain why the event you selected meets the criteria.

Approximately $1-3$ sentences per answer. $(10$ points$)$

a$.$ A basic event that represents high risk to the system because the event has high frequency but low consequence.

b$.$ A basic event that represents high risk to the system because the event has low frequency but high consequence.