Out of 12 employs of a bank, one employ retires and his place, a new employ of age 24 years joins as a result average age of employs reduces by 4 years. The age of the retired employ is:  Choose the most appropriate option:
A) 72	B) 74	C) 78	D) 79	E) 60
72   Option '72'
<result>A</result>
Out of 12 employs of a bank, one employ retires and his place, a new employ of age 24 years joins as a result average age of employs reduces by 4 years. The age of the retired employ is: