Which of the following is an activity, not an industry?

i believe the answer would be b. within an intersection or on a crosswalk. hope this ! : )

adbusters is an oppressive not-for-profit organization, founded in 1989  determined to end capitalism. the goal is to  spread their message through a self published magazine (which contains no advertisements). the likely reason why adbusters publishes a magazine with spoof advertisements is that  adbusters wants to encourage consumers to think critically about ads. 

a software system that is used for viewing and creating hypertext is a hypertext system.

i hope this .