I believe the answer is 35-39 but you didn't give the full answer to d so that could be the correct one.
5 times is how many times did President Reagan and General Secretary Gorbachev meet in high-level meetings toward the end of the Cold War.
You're welcome ;)
Answer: Automatization
Explanation:
Automatization is defined as the automatic technology that supports and processes any system with low amount of human intervention.In automatic process, attention, effort and power is required till certain limit after which they can work without much assistance.
Assistance requiring devices and system are controlled through humans and other equipment whereas automatic device can work with minimal amount of attention.
Other options are incorrect because storing , retrieving and encoding are not the methods for providing attention to any act till certain limit.Thus, the correct option is automatization
