When Operating Under Severe Budget Constraints a CISO Will Have

When operating under severe budget constraints a CISO will have to be creative to maintain a strong security organization. Which example below is the MOST creative way to maintain a strong security posture during these difficult times?

A) Download security tools from a trusted source and deploy to production network
B) Download open source security tools from a trusted site, test, and then deploy on production network
C) Download trial versions of commercially available security tools and deploy on your production network
D) Download open source security tools and deploy them on your production network