The right answer is Its body cells would have 78 chromosomes, and its gametes would have 39 chromosomes.
Body cells excluding germ cells and embryonic cells in the early stages of development. Human somatic cells have 23 pairs of chromosomes, 46; they are called diploids.
The somatic cells of the wolf have 39 pairs of chromosomes, ie 78; they are diploid.
A gamete is a generally haploid reproductive cell specialized in fertilization, or gamy, in eukaryotes. The gametes of the wolf have 39 chromosomes (half of a somatic cell).