The correct answer is A. The laborer who rebuilt the bicycle should receive the value in full.
Step-by-step explanation:
According to Karl Marx who was an important German economist and philosopher in capitalism there is a struggle between those that own the means of production or the bourgeoisie and those who work and are part of the manufacturing process. This conflict emerges as those who own the means of production also receive most of the value of products while workers exchange their work for a wage.
In this terms, according to Marx it should be the worker rather than the owner of a factory or company the one that should be compensated for work and therefore in the case of a bicycle that was rebuilt "the laborer who rebuilt the bicycle should receive the value in full" because this is the agent or person that made all the work.