Rearrange the following sentence parts to form a meaningful and grammatically correct paragraph:
P. It soon became a very important tool for long-distance information communication.
Q. The invention of the telegraph was one of the most remarkable technological advances of the 19th century.
R. In linking cities and even continents with its cable and signal networks, it transformed the rhythm of life.
S. This rate of communication had a revolutionary effect on the conduct of politics, business, and warfare.
Show answer & explanation
Correct answer: A
Explanation
The correct logical flow begins with the general statement (Q) introducing the telegraph's importance. Then (P) elaborates on its function as a tool. Following this, (R) details the physical impact of its network, and finally (S) describes the revolutionary effect of this new rate of communication. The sequence Q, P, R, S creates a coherent and grammatically correct paragraph.