In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. -
c _ bba _ cab _ ac _ ab _ ac
If it is possible to make a meaningful word with the third, the fifth, the seventh and the tenth letters of the word "PROJECTION' which of the following is the third letter of that word ? If no such word can be made, give X as the answer. If more than one such word can be made, give M as the answer.