The first National development plan period was from? by Sunday | May 3 | Economics NECO | 0 comments A. 1955-1959 B. 1962-1968 C. 1965-1970 D. 1970-1974 E. 1975-1980 Correct Answer: Option B – 1962-1968 Users Also Read These:The short-run period in production is defined as a…The 2nd National Development plan in Nigeria was between?Short-run period in production is a period too short…If a country's national income increased from N1000…Determine wage expenses from the given information:…