You get one trade- what do you do?

[CCard]

A: trade for a RH outfield middle of the order bat like Byron Buxton, Adolis Garcia, or Taylor Ward?

B) Trade for a SP with top of the rotation stuff like Joe Ryan, Pablo Lopez, or Sandy Alcantara?

Which would improve the team more?

Shohei Ohtani for Miles Mikolas. You didn't say it had to be believable.