The student would be provided with more test papers than the minimum he/she has to submit to obtain his/her CC.
It is always in the interest of the student that he/she answers all the papers provided to him/her which would be a help in his/her preparation for the main examination.
Students are always encouraged to answer all the papers. The optional papers would also be evaluated and returned to the student even though he/she has already submitted and qualified in the required minimum number of papers.