A postal order, either crossed or open is only valid for a period of? by Sunday | Jul 24 | Commerce WAEC | 0 comments A. 12 months B. 10 months C. 8 months D. 6 months E. 5 months Correct Answer: Option D – 6 months Users Also Read These:A yellow maize is crossed with a white maize and the…The fees charged on the postal order by the post office is?A crossed postal order is?The fees charged on postal order by the post office…A commission charged on postal order is?