Final answer:
Option d) "It is difficult to babysit my cousin Shella, who wants to stay up until all hours of the night. She wails until I come in and check on her. Although she never needs anything when she stays up late crying, she walls for attention." has the most diverse use of sentence clauses to create variety.
Step-by-step explanation:
The revision with the most diverse use of sentence clauses to create variety is option d) "It is difficult to babysit my cousin Shella, who wants to stay up until all hours of the night. She wails until I come in and check on her. Although she never needs anything when she stays up late crying, she walls for attention." This option includes relative clauses and subordinating clauses to vary the structure of the sentences.
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