Which sentence in this excerpt from “a dissertation upon roast pig” by charles lamb illustrates that it is a persuasive essay?
the judge, who was a shrewd fellow, winked at the manifest iniquity of the decision; and, when the court was dismissed, went privily, and bought up all the pigs that could be had for love or money. in a few days his lordship's town house was observed to be on fire. the thing took wing, and now there was nothing to be seen but fires in every direction. fuel and pigs grew enormously dear all over the district. the insurance offices one and all shut up shop. people built slighter and slighter every day, until it was feared that the very science of architecture would in no long time be lost to the world. thus this custom of firing houses continued, till in process of time, says my manuscript, a sage arose, like our locke, who made a discovery, that the flesh of swine, or indeed of any other animal, might be cooked (burnt, as they call it) without the necessity of consuming a whole house to dress it. then first began the rude form of a gridiron. roasting by the string, or spit, came in a century or two later, i forget in whose dynasty. by such slow degrees, concludes the manuscript, do the most useful, and seemingly the most obvious arts, make their way among mankind.

without placing too implicit faith in the account above given, it must be agreed, that if a worthy pretext for so dangerous an experiment as setting houses on fire (especially in these days) could be assigned in favor of any culinary object, that pretext and excuse might be found in roast pig.
of all the delicacies in the whole mundus edibilis, i will maintain it to be the most delicate—princeps obsoniorum.