Final answer:
The correct answer is b) 95th, 99th. Percentiles represent specific points in a data set, and in this case, slowdown events are detected for the 95th and 99th percentile.
Step-by-step explanation:
In this case, the correct answer is b) 95th, 99th.
Slowdown events are detected for the 95th and 99th percentile. Percentiles are used to represent a specific point in a data set.
The 95th percentile represents the value below which 95% of the data falls, while the 99th percentile represents the value below which 99% of the data falls.