The last option is the most correct out of all four choices in proper capitalization and emphasis of titles.
Can you attach the excerpt please?
What? Hajznisnaixmanaisnoqns
In order to develop an argument in favor of a ban on pesticides that harm bees, the combination of resources that would be most helpful in supporting my position is that <span>study showing a correlation between bee hive health and the amount of pesticide applied in nearby fields, as it is the option that allows me to demonstrate the hazard of the pesticide and so the necessity of a ban.</span>