Sentence Correction

Hello!

Can someone please explain the difference between options D & E?

The team streamed into the locker room, donned their uniforms, and, before commencing its first practice, they joined in a brief strategy session.

B) and its first practice was preeceded by a brief strategy session
C) and a brief strategy session preeceded its first practice
D) and, before commencing their first practice, they joined in a brief strategy session
E) and, before commencing their first practice, joined in a brief strategy session

[spoiler]OA:D[/spoiler]

Thanks so much!