Choose the most logical order of sentences from among the four given choices to construct a coherent paragraph.

A. A sentence, or a short passage, has to be enlarged into a paragraph by the fuller and more elaborate expression of the meaning.
B. In précis-writing we have to compress; and in this exercise we have to expand.
C. This exercise is the exact opposite of précis-writing.
D. Such an exercise practically amounts to the writing of a miniature essay on the subject of the original sentence or passage.