what is a Dead drop spike cold war?
what does it do?
Who used it? (KGB or CIA, etc.)
*NEEDS TO BE IN A PARAGRAPH*

A dead drop or dead letter box is a method of espionage tradecraft used to pass items or information between two individuals (e.g., a case officer and an agent, or two agents) using a secret location. By avoiding direct meetings, they could maintain operational security. The method stands in contrast to the live drop, so-called because two persons meet to exchange items or information.

Explanation:

i believe it d) heterogeneous

small european communities with shared traditions consolidated into large new states (apex)