Choose your reply from the options at the end. Does "After World War II, two new competing formats came onto the market and gradually replaced the standard "78": the 33 13 rpm (often just referred to as the 33 rpm), and the 45 rpm (see above)." contain the correct answer to "When did the 33 1/3 rpm hit the market?"
OPT:
* yes;
* no;
no