Read the sentence below and complete the instruction that follows. fashion critics have traveled from every country to witness the unveiling of the designer's latest line of shoes. identify the sentence type. simple sentence compound sentence complex sentence compound-complex sentence

The correct option is Compound-complex sentence.

The compound-complex sentence is made up of an independent clause (contains subject and verb and can stand by itself)

…”Fashion critics have traveled from every country..”

and one or more dependent clauses.(Dependent clauses cannot stand by itself) connected to it :

…”to witness the unveiling of the designer's latest line of shoes…”.  

This dependent clause cannot stand alone as sentence. It is  considered fragments. A complex sentence indicates  the relation between the main parts of the sentence.  

answer; i believe that the correct answer is (scientific data);

it translates into:

read the letter of your pen pal. write and answer 3 questions.