I believe that the answer is D.
Please mark as brainliest; have a blessed day!
As the writer forms an idea of what he wants to write, he should begin to narrow his vision and focus on a specific topic and tackle what that topic entails.
Answer:
"which became popular in the 1960s"
Explanation:
"which became popular in the 1960s" is the answer because is starts with 'which'
Option 1 (It describes the days being discussed) is correct since it refers to a particular set of days, those in which the subject of the sentence goes jogging, and a particular moment of the day which is the morning.
Option 3 (It creates a compound-complex sentence) is correct because the sentence contains two independent clauses and a dependent clause.
The two independent clauses are: "<em>My mind seems to process ideas faster</em>" and "<em>My mood is more positive</em>". These two independent clauses are joined by the coordinating conjunction "<em>and</em>". The compound-complex sentence also includes a dependent clause "<em>On days when I go jogging in the morning</em>" which is dependent on the two main independent clauses previously mentioned.
Streaking across the sky was a pattern of lights, it could be a helicopter or an airplane.
