If A={x:x is a prime number <10}A = \{x : x \text{ is a prime number } < 10\}A={x:x is a prime number <10} and B={x:x is an odd number <10}B = \{x : x \text{ is an odd number } < 10\}B={x:x is an odd number <10}, what is A∩BA \cap BA∩B?
{3,5,7}\{3, 5, 7\}{3,5,7}
{2,3,5,7}\{2, 3, 5, 7\}{2,3,5,7}
{1,3,5,7,9}\{1, 3, 5, 7, 9\}{1,3,5,7,9}
{3,5,7,9}\{3, 5, 7, 9\}{3,5,7,9}