Correct option is A
Correct order: (a)
BCDA
Correct sentence formed:
After a slump in Covid years, car sales have again registered a big growth.
Detailed explanation:
•
(b) “after a slump in Covid years,” is an introductory time/condition phrase; it sets the background, so it comes first.
•
(c) “car sales” is the
subject (what we are talking about).
•
(d) “have again registered” is the
verb phrase (action done by the subject).
•
(a) “a big growth” is the
object/complement (what has been registered).