Refer to This Text to Answer the Following Questions

Refer to this text to answer the following questions.
Bacterial gene transfer is also used in the lab to introduce genes into organisms of different species,genera,phyla,or even kingdoms or domains.A major example is the use of a Ti plasmid of the soil bacterium Agrobacterium tumefaciens to transfer genes into dicotyledonous plants.The bacterium infects the plant root in the soil and transfers some of the Ti plasmid genes (T DNA) into the plant nucleus.Recombination may occur,and T DNA expression is controlled by plant compounds generated in response to wounding and infection.
-Benzer's analysis of phage genomes included deletion mapping.Since recombination could not occur in the area of a deletion,an infection by two phage strains,one of which has a deletion and the other a point mutation,which results in no wild-type recombinants being produced indicates ________?

A) that the deletion includes the position of the point mutation in the same gene
B) that the deletion includes the position of the point mutation in a different gene
C) that the point mutation is dominant
D) that the point mutation is recessive
E) the distance between the two types of mutation