The prime factors of $$209$$ are $$11$$ and $$19$$, so these must have been the reversed numbers that Miruna multiplied. The correct multiplication was $$11 \times 91=1001$$. 
Miruna had to multiply two $$2$$-digit numbers together, but she accidentally reversed the digits of both of them before multiplying and reached the answer $$209$$. Which of the following answers should she have got? 

(a) $$1001$$ 
(b) $$1003$$ 
(c) $$1005$$ 
(d) $$1007$$ 
(e) $$1009$$ 