The passage mentions that the modern constitutions of the newly admitted states of Alaska and Hawaii, as well as the Commonwealth of Puerto Rico, are notably concise, ranging from 9,000 to 15,000 words.
Option (a) is incorrect — lengthy constitutions are associated with some older U.S. state constitutions, like Louisiana’s (~255,000 words), not the newly admitted states.
Option (c) is incorrect — the passage states that political parties, though not mentioned in the written constitution, have constitutional significance.
Option (d) is incorrect — the U.S. Constitution is an example of a normative constitution, not a “normal” one in the sense used by the author.
Thus, (b) is correct.