Correct option is A
The Gupta Period (circa 4th to 6th centuries CE) is often referred to as the Golden Age of India, especially in terms of advancements in mathematics and science. During this period, the decimal notation system was developed, which is now a fundamental concept in modern mathematics.
Zero in Mathematics: The concept of zero as both a placeholder and a numeral was fully integrated during the Gupta period, marking a revolutionary step in mathematical theory.
Advances in Astronomy: Mathematical advancements were closely linked to astronomical studies during this time, with Aryabhata's model of the solar system being based on the use of trigonometric functions.
Additional Information:
Combinatorics: While combinatorics (the study of counting and arrangement) has ancient roots, it became more developed in later centuries.
Euclidean Geometry: While Euclid’s geometry is highly influential, it was developed in Greece.
Differential Calculus: Calculus, especially differential calculus, was developed much later, primarily in Europe during the 17th century by Newton and Leibniz.