This question is incomplete. Here's the complete question.
Select the sentence with correctly placed commas.
In ancient times, silverpoint, a traditional drawing technique, was employed by scribes, and consisted of dragging a piece of metal across a surface lined with gesso.
In ancient times silverpoint, a traditional drawing technique was employed by scribes, and consisted of dragging a piece of metal across a surface lined with gesso.
In ancient times, silverpoint, a traditional drawing technique, was employed by scribes and consisted of dragging a piece of metal across a surface lined with gesso.
In ancient times silverpoint a traditional drawing technique was employed by scribes and consisted of dragging a piece of metal across a surface lined with gesso.
In ancient times, silverpoint, a traditional drawing technique was employed by scribes, and consisted of dragging a piece of metal across a surface lined with gesso.
Answer: In ancient times, silverpoint, a traditional drawing technique, was employed by scribes and consisted of dragging a piece of metal across a surface lined with gesso.
Step-by-step explanation:
A comma should follow a dependent clause placed at the beginning of a sentence:
"In ancient times, silverpoint..."
Commas are also applied to include appositives. When the appositive is in the middle of a sentence there has to be a comma in both sides of the phrase:
"silverpoint, a traditional drawing technique, was employed"
We should place a comma before coordinating conjunctions that link two independent clauses, such as the word "and". However, if the second clause doesn´t have its subject, it´s not a clause so it doesn´t need a comma.