Two decisions stacked together: when to deliver, and by what route.
When: BP 140/96 with 1+ proteinuria is preeclampsia, and twin pregnancies are already delivered around 37-38 weeks. At 38 weeks with preeclampsia, continuing to 40 weeks (option 2) or merely watching for preeclampsia to appear (option 4) is unsafe, because it is already here and the gestational target is reached. So delivery now is mandatory.
How: the leading first twin is breech. A non-cephalic presenting twin is a recognised indication for caesarean section, so attempting immediate vaginal delivery (option 3) is hazardous due to the risk of interlocking and a difficult breech.
Combine the two and the safe plan is immediate caesarean section. Hence option 1, immediate LSCS. Ref: Dutta Obstetrics.