Read the excerpt from "the revolt of mother." the woman stood for a moment looking after him, then she went out of the barn across a corner of the yard to the house. the house, standing at right angles with the great barn and a long reach of sheds and out-buildings, was infinitesimal compared with them. it was scarcely as commodious for people as the little boxes under the barn eaves were for doves. which is the correct definition of the word “infinitesimal” based on its usage in the excerpt? extremely large extremely close extremely small extremely far away

She took up a scalpel and slit the monkey's abdomen, making a slow and gentle cut, keeping the blade well away from her gloved fingers. the spleen was puffed up and tough, leathery, like a globe of smoked salami. she did not see any bloody lesions inside this monkey. she had expected that the monkey's interior would be a lake of blood, but no, this monkey looked all right, it had not bled into itself. if the animal had died of ebola, this was not a clear case. she opened up the intestine. there was no blood inside it. the gut looked okay. then she examined the stomach. there she found a ring of bleeding spots at the junction between the stomach and the small intestine. this could be a sign of ebola, but it was not a clear sign. it could also be a sign of simian fever, not ebola. therefore, she could not confirm the presence of ebola virus in this animal based on a visual inspection of the internal organs during necropsy.