小弟资质愚钝，关于规则五薪资，看了MLB规则之后还是似懂非懂
以下节录自mlb rule 5
If a selected player was under a Major League Uniform Player’s Contract for a
ll or part of the season preceding the player’s selection, a Major League Clu
b that returns such a player to the Major League Club from which the player wa
s selected shall be liable for any salary set forth in its Major League Unifor
m Player’s Contract with the player in excess of the total salary the player
received (under both a Major League Uniform Player’s Contract and a Minor Lea
gue Uniform Player Contract) for the previous championship season.
想请问各位大大哪个条件比较符合真实情况，或是有其他更适合的解释。
假设C球员原本在A队（合约为1000万/1000万的两年约），并在第一年结束后的规则五选
秀被B队选走，B队在第二年正好进行到一半的时候将C退回A队（假设忽略waiver等过程）
这两个选项是否有较符合实际情况的？
（A)B负担当年度一半500万，剩余薪水在退回A队后由A队负担剩余的500万
(B)B负责当年度所有薪水1000万，退回后A队不需负担任何薪水
在此先感谢各位大大拨冗回答这个问题