This first answer isn\'t right for the question above. And I think this is right

Question

This first answer isn't right for the question above.

And I think this is right, but I just wanted to double check.

The human metagenome includes the genomes of the gut microbiome. The figure below shows the genes for a polysaccharide utilization locus (PUL) for xyloglucan, or plant fibers, in a set of gut microbes. The figure tells us that the PUIL B ovafus ATCC 8483 GH3A GH2A GH31A receptor B. uniformvis ATCC 8492 PUL1 GH3 GH2 GH31 B cellulosilytius DSM14838 B. fluxus YIT 1 2057 GH3 GH2 GH31 GHS GH43 Click to view larger image. O evolved independently in each microbe. was transmitted from B. ovatus to all the rest through horizontal gene transfer. O demonstrates common ancestry among this group. contributes to human caloric intake of plant fibers

Explanation / Answer

PUL (polysaccharide utilization locus) genome sequence reveal from the figure that genome sequences of all microbe demonstrates common ancestry among the group. As the genome of all microbiome, have some common gene arrangement, it is showing that they evolved from a single ancestor. Hence, option “c” is correct.

Fermentation product is dependent on the environmental condition and type of organism. Hence, option “b” is right answer.

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