Partha has withdrawn its troops from Baltia after five years of occupa

Partha has withdrawn its troops from Baltia after five years of occupation. Earlier this year the country of Cardena began shipping mules to Baltia's resistance fighters to facilitate the transport of weapons across Baltia's mountains to the battle areas. Cardena's diplomats now claim that without Cardena's aid to Baltia's resistance fighters, Partha would not have withdrawn.

Which of the following, if true, casts the most serious doubt on the accuracy of the assertion of Cardena's diplomats?

(A) No precise figures are available concerning the number of mules shipped to Baltia.
not concerned about the number
(B) During the past year, Cardena shipped weapons and food, as well as mules, to resistance fighters in Baltia.
strengthenthe position of C's diplomats
(C) Last year a new government took power in Partha and decided that national interests were not served by the occupation of Baltia.
This states that the retirement was decided by P's government and not influenced by C's policy
(D) Two years ago Partha had no plans to reduce its forces in Baltia.
out of scope + strengthen
(E) Resistance fighters in Baltia fought for five years against Partha's occupying troops.
out of scope