Which of the following did not contribute to the weakness of the nationalist party in china? lack of military support from the united states internal strife and corruption poor economy political unity answer

Political unity 
It contributed to the strength of the KMT as the nationalist forces were corrupt, lacked poor leadership and were disunited. The USA did not intervene in the revolution because of its timing and also because of the strategic disadvantages of invading a country as big as China geographically and population wise.

Marshall plan is the answer.