Answer:
The best answer is C. Morphemes.
Explanation:
Morphemes are the smallest parts of speech which make sense, such as prepositions like "in", "of", or even prefixes like "de", "un", among others. When people are about to produce sentences they use their "mind data" to put morphemes together in order to produce phrases, words, clauses, sentences with different meanings and contexts. That is the reason for people to replace and/or mistake one phrase and/or morpheme here and there in their speech, because they may change sentence constructions or even word constructions at the real time building.
The best way to understand an informational text is by reading the important facts including numbers, etc. (If there's any)
The revision that correctly uses subordination to connect the groups logically is option B. Smith won out in the end, but not until late in his life. The Geological Society established the Wollaston Medal, its highest annual honor, in 1831; consequently the first Wollaston Medal went to William Smith.