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Correct answer is lord.

Explanation:

Lord is the correct answer because they were pledging their loyalty to the ruler, who was at the same time the owner of the land. This was the basis of the feudal system.

Monarch is not correct because monarch was the one to whom the allegiance was pledged to.

Guild is not correct answer because was an association of traders, that was not connected to feudal system.

Serfs in the feudal system were the lowest layer, that was practically totally deprived of any rights.

the answer is the petition of right.

explanation:

offer to of right, real demand of attesting a benefit against the english crown, the most remarkable point of reference being the petition of right of 1628, which parliament sent to charles i fussing of a movement of oversteps of law. the term also implied the framework (invalidated in 1947) by which a subject could sue the crown.   taking a gander at the frameworks used by maria amidu to make a standard in 2015 commending the 1628 petition of right, which was sent to charles i by the english parliament. at uniquely based law the crown, or the sovereign in his official cutoff, couldn't be sued in the ruler's courts. since the ruler was, really, the superior ace of those courts, coordinating value in them between his subjects, he was not subject to their ward. therefore it transformed into a preparation, at whatever point a subject's certified or individual property had come into the responsibility for ruler or his specialists without legitimate perfect, for the subject to engage the master in chamber for its recovery.

answer; /// working class;