Question

What shall be correct combination of two simple sentence into a complex sentence by using an adverb clause.
The chief guest entered the hall. The audience clapped.
(1) The audience clapped as the chief guest entered the hall
(2) The audience clapped upon the chief guest entering the hall
(3) The audience was clapping when the chief guest entered the hall
(4) The audience had to clap when the chief guest entered the hall

Answer 1

(1) The audience clapped as the chief guest entered the hall.