In what way are basic and applied research studies of a cloned gene different?

A) In basic research, a researcher wants to study the gene's function, including how its expression is regulated, and the nature of the gene's product, while in applied research, the interest is in using cloned genes for private application.
B) In basic research, a researcher does not want to study the gene's function, including how its expression is regulated, and the nature of the gene's product, while in applied research, the interest is in using cloned genes for medical application.
C) In basic research, a researcher does not learn about the gene's structure, including its DNA sequence and sequences that regulate its expression, while in applied research, the interest is in the structure and function of a gene.
D) In basic research, a researcher learns about the gene's structure, including its DNA sequence and sequences that regulate its expression, while in applied research, the interest is not in the structure and function of a gene.