Correct option is C
The pattern is as follows:
First pair - 44:4
Logic: First number ÷ second number = prime number
44/4=11 ( prime number)
second pair - 287:7
287/7=41 (prime number)
We need to find a number that, when divided by 10 , gives 10 :
? : 10
Option a – 570 ÷ 10 = 57 (not a prime number , 19 × 3)
Option b – 639 (not divisible by 10)
Option c – 890 ÷ 10 = 89 (yes, it is a prime number)
Opion d – 810 ÷ 10 = 81 (not a prime number, 9×9)
Therefore, the correct answer is (c) 890.