<span>I would say it's B. My sister gave me a signed copy of the book</span>
The two compatible numbers are 500 and 600
You reciprocate when you return a favor, return a compliment, or respond "the same to you" to the angry guy in the car you just passed. In short, you react to an action, statement, or emotion by mirroring it. This one comes from the Latin verb reciprocare, meaning to move back and forth.
By depicting how Kumalo is robbed upon arrival in Johannesburg, the novel reflects the crime that was prevalent in urban areas of South Africa in the 1940's.