The correct option is
C 531
The alphabetical order of the letters of the given word is C,C,E,I,K,R,T
The number of words begin with CC is
5!=120The number of words begin with CE is
5!=120The number of words begin with CI is
5!=120The number of words begin with CK is
5!=120The number of words begin with CRC is
4!=24The number of words begin with CRE is
4!=24The number of words begin with CRICE is
2!=2The next word is CRICKET
Rank is 120+120+120+120+24+24+2+1=531