سوال ۳۰ کنکور ارشد علوم کامپیوتر ۱۳۹۹

PASSAGE 3 (excerpt):

"Vectors offer a distinct advantage over classic analytic geometry by minimizing our dependence on a specific coordinate system. ... Vector operations allow us to readily determine perpendicularity or parallelism. These operations support algebraic operations while retaining geometric meaning, e.g., once, Section 3.1 presents a review of vectors and vector geometry."

Select the word that is closest in meaning to the underlined word, retaining, in the text.