How does tolstoy set up gerasim to be a foil to praskovya fedorovna in these two excerpts from the death of ivan ilyich?

a. both gerasim and praskovya fedorovna are honest about their motives, but only gerasim genuinely cares for ivan ilyich.
b. while gerasim is kind to ivan ilyich and offers him all the he can, praskovya fedorovna is cruel to ivan and torments him.
c. gerasim attends to ivan ilyich’s needs and gives him all his medicines, while praskovya fedorovna does not care and neglects his health.
d. both gerasim and praskovya fedorovna want ivan to beat his disease and survive, but only gerasim cares about ivan ilyich’s happiness.
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