a 4. Considering the string statements below and assuming s1, s2 and s3 have been defined as strings (i.e., char (201), answer questions a to c: 0) $1-strlen(82); (ii) 83-32*31; (iii) printf("s", s2); (iv) s2[41-53[5); (v) 2-"Amicorrect?"; a. Which statements are not syntactically correct? Why? b. Which statement(s) returns the size of a string? c. Which statement(s) copy a part of a string to another? AAA 5