Which represents a deletion of a section of the DNA shown here?
A—C—T—G—G—A—T
A.
A—T—C—T—G—G—A—T
B.
A—C—T—C—G—A—T
C.
A—C—T—A—T
D.
A—C—T—C—C—T—T
A—C—T—G—G—A—T
A.
A—T—C—T—G—G—A—T
B.
A—C—T—C—G—A—T
C.
A—C—T—A—T
D.
A—C—T—C—C—T—T