Edgar Allan Poe was the master of horror and the creator of modern detective story. His stories and poems commonly deal with theme of

A. Sleep and restlessness
B. Manifest destiny
C. Death and loss
D. Spiritualism and devotion

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.

b: the exchange of coined money