How long are sessions kept in the ISE Monitoring and Troubleshooting node If there is authentication but no accounting?

How long are sessions kept in the ISE Monitoring and Troubleshooting node If there is authentication but no accounting?
A . 5 hours
B . 5 days
C . 1 hour
D . 1 day

Answer: C

Explanation:

https://www.cisco.com/c/en/us/td/docs/security/ise/2-1/admin_guide/b_ise_admin_guide_21/b_ise_admin_guide_20_chapter_011000.html