The correct answer is: A. Only assumption I is implicit
The statement “Retired persons should not be appointed for executive posts in other organisations” suggests that retired persons may lack the zeal and commitment to carry out executive’s work. This is because executive positions require a lot of energy and dedication, which retired persons may not have.
However, the statement does not suggest that retired persons do not take interest in the work and welfare of the new organisation. In fact, some retired persons may be very interested in working for a new organisation and contributing to its success.
Therefore, only assumption I is implicit in the statement.