The correct answer is: C. SRPQ
The sentence is about the consequences of a ceiling on urban property. The first sentence (S1) states the main idea of the paragraph: a ceiling on urban property would mean that no press magnate could own printing presses. The second sentence (P) provides an example of a type of property that would be affected by the ceiling: factories or mills or plants. The third
sentence (Q) provides another example of a type of property that would be affected by the ceiling: mass circulation papers. The fourth sentence (R) explains the reason why these properties would be affected by the ceiling: their value would exceed the ceiling fixed by the government. The fifth sentence (S6) is a conclusion that summarizes the main points of the paragraph: a ceiling on urban property would mean that no press magnate could own printing presses.The other options are incorrect because they do not follow the logical order of the sentences. Option A (QSRP) puts the example of mass circulation papers before the example of factories or mills or plants. Option B (RPSQ) puts the reason why the properties would be affected by the ceiling before the examples of the properties. Option D (QPSR) puts the conclusion before the main points of the paragraph.