硕士收到了里海的OFFER要不要转专业

前几天Lz很幸运的收到了里海的MEoffer,但是由于Lz一直有一颗转CS的心,所以给里海大学的小秘发了一封信,询问了一下能否转CS系里面.信是这么回复的
If you want to apply for Computer Science I can do one of two things.

I can ask they amend your application to Computer Science.

If you would like to accept your offer online with Mechanical Engineering and Mechanics, then you would need to apply to Computer Science as well.
LZ觉得第一个方案是把我的applicationz移交给CS系审理,也就是说要重新申请?也就是说如果CS拒了的话lz可能就不能在里海读了?
另外Lz还收到了乔治华盛顿的Offer,觉得试一下也不至于没学上,但是总有一种自己放弃offer的感觉,希望有大神能够指点一下,谢谢~