Answer:
Correct answer is B . They pioneered the study of algebra.
Step-by-step explanation:
A is not correct as this concept existed even in Ancient Mesopotamia.
Option B is correct as Arabic mathematicians, especially Muhammad ibn Musa al-Khwarizmi contributed the most to the development of algebra.
C is not correct as Euclid lived in Ancient Greece.
D is also not correct as Arabic numerals are also their important contribution.