c) open
I think this because when you're in an open space (such as starbucks) it's public for anyone to enter. I think.
Home is the answer. Hope this helps. :)
Answer: Algorithm
Explanation: An algorithm is a plan, a set of step-by-step instructions to solve a problem. it involves three basic building blocks to use when designing algorithms. these are.,
1. Sequencing
2. Selection
3. Iteration
