In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Centuries ago, Aryabhata, one of the most famous Indian mathematicians and astronomers (1)__________ the concept of zero, the base of the present (2)_______ system. With time, zero became a stepping stone to (3)_______ simplified computations, (4)______ the ways for development of algebra, algorithms and calculus, three pillars of modern mathematics, while eventually laying the (5)______ for computers.
Select the most appropriate option to fill in blank number 1.
propounded
The correct answer is propounded.
The passage discusses the historical contribution of Aryabhata to mathematics. The sentence requires a verb in the past tense to describe a completed action in the past. Let's analyze the options:
Therefore, "propounded" accurately reflects Aryabhata's historical contribution of introducing the concept of zero. The sentence describes a completed action in the past, making the past tense verb "propounded" the only grammatically correct and contextually appropriate choice. The use of simple past tense maintains the historical narrative effectively and precisely describes Aryabhata's significant contribution. The other options do not fit grammatically or contextually within the sentence, which speaks of an historical event. The choice of "propounded" aligns with the formal tone and academic nature of the passage.