The need for a file proxy solution, virus and spyware scanner, a vulnerability scanner, and HTTP decoder for URL filtering is handled by which component in the NGFW?

A. First Packet Processor

B. Stream-based Signature Engine

C. SIA (Scan It All) Processing Engine

D. Security Processing Engine

Reference: https://media.paloaltonetworks.com/documents/Single_Pass_Parallel_Processing_Architecture.pdfn (page 6)