1. <span>A. strength
The simile that likens his shoulders to a full sail shows the force that must be exerted to plough the field. A "globed" sail would be rounded because of the powerful winds blowing against it. Just as the wind's, resistance is transformed into something useful by moving the boat forwards; his father's exertion transforms the land into fields that grow crops of food. While ploughing the land in this way would certainly require knowledge and skill, the simile does not refer to these qualities.
2. </span><span>D. "Mapping the furrow exactly"
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Reference to the father's expertise is indicated by his "mapping the furrow" and doing so "exactly."
Among the sentences in the excerpt from Leo Tolstoy's The Death of Ivan Ilyich, I think the statement that shows that Ivan Ilyich has realized the hypocrisy of his earlier life is: "Ivan Ilyich knows quite well and definitely that all this is nonsense and pure deception, but when the doctor, getting down on his knee, leans over him, putting his ear first higher then lower, and performs various gymnastic movements over him with a significant expression on his face, Ivan Ilyich submits to it all as he used to submit to the speeches of the lawyers, though he knew very well that they were all lying and why they were lying." This is because in his earlier life before he was terminally ill, he too also submitted to the lawyers in order to work his way up on the social ladder.
Nola was the daughter of the son
Imagists believed that poems should have "no ideas but in things." In other words, they would described powerful images, and instead of explaining what those images meant, they would let the reader decide what the meaning or value of those images might be.
Imagists were especially fond of inviting the reader to recognize how very different sorts of images can actually be really similar. Ezra Pound famously did this with his short poem "In a Station of the Metro," which associates "faces in the crowd" with "petals on a wet, black bough."
The poem in your question does something very similar by associating the cat's footprints in the snow with the blossoming flowers of a plum tree. The writer wants you to recognize the odd visual similarity of the footprints and the flowers, ideally to show how there's a kind of cosmic connectedness in the world by (because two very different things end up being really similar).
That's why I think your best answer is A.