Select the letter of the INCORRECTLY written sentence.
a.
Mustafa enjoys walking through art galleries he regularly visits the Detroit Institute of Arts.
b.
Mustafa enjoys walking through art galleries; he regularly visits the Detroit Institute of Arts.
c.
Mustafa enjoys walking through art galleries. He regularly visits the Detroit Institute of Arts.
d.
Because Mustafa enjoys walking through art galleries, he regularly visits the Detroit Institute of Arts.
