The answer should be B according to Study Guide and the link below:
SaaS Inline Security is a security service that offers advanced risk scoring, analytics, reporting and
security policy rule authoring so that your organization has the SaaS visibility and security controls to
prevent data security risks of unsanctioned SaaS app usage on your network.
https://docs.paloaltonetworks.com/saas-security/saas-security-admin/saas-security-inline/get-started-with-saas-security-inline/whats-saas-security-inline#idf9f840a9-055f-4320-9c1f-b0e46e5f4eed