Correct option is C
Step-by-step Construction:
Start with (D):
"scientists have developed a"
This clearly introduces the subject and action of the sentence.
Follow with (A):
"pressure-sensitive"
This describes the type of object developed. Now it reads:
"Scientists have developed a pressure-sensitive..."
Then comes (B):
"mattress designed to reduce"
It completes the noun phrase:
"Scientists have developed a pressure-sensitive mattress designed to reduce..."
End with (C):
"the risk of bed sores in patients"
This completes the purpose of the mattress.
Full sentence:
"Scientists have developed a pressure-sensitive mattress designed to reduce the risk of bed sores in patients."
Correct Sequence: D A B C
Final Answer: Option c. DABC
Explanation:
· (D) begins the sentence with the subject and verb
· (A) introduces the type of object
· (B) explains the function
· (C) completes the purpose
· The sentence flows
logically and grammatically in this order.