A bacterium that is a gram-negative, polarly flagellated, aerobic rod, and is able to use diverse carbon sources most likely belongs to the genus .

Genus Pseudomonas

Explanation:

Pseudomonas is right Answer.The organisms of Pseudomonas genus are generally free-living bacteria widely conveyed in soil, water, marine situations and on the skin of creatures, including people. Pseudomonas favors soggy regions. They are gram-negative microscopic organisms with a bar shape.   Pseudomonas diseases are brought about by a free-living bacterium from the family Pseudomonas. They favor clammy regions and are broadly found in soil and water. Just a couple of the numerous species cause disease.The most well-known species that causes disease is called Pseudomonas aeruginosa .