English grammar — sentence improvement (superlative form and adverb vs. determiner): Correct the highlighted part to make the sentence natural and grammatical. Original sentence: "The man who has committed such a serious crime must get the mostly severe punishment." Choose the best replacement for the underlined segment so the sentence reads correctly.

Given data

• Phrase in question: "mostly severe" following "the".
• Context demands a superlative degree of the adjective severe.

Concept/Approach
Use the superlative with a determiner: the most + adjective. "Mostly" is an adverb of frequency/extent, not the superlative marker.

Option analysis
B. "get the most severe" → correct superlative structure and verb form. ✔A/D → wrong forms and word order ("mostly severely", "severe most"). ✖C → adverb "severely" (manner) instead of adjective; wrong tense. ✖E → original has "mostly severe", which is incorrect. ✖

Corrected sentence
"The man … must get the most severe punishment."

Final Answer
get the most severe