score:2
The majority of people with valid visas do not carry documents along on the trip.
A bank statement and letter of authorized leave from her company should be sufficient in case sheβs asked. Actually saying sheβs traveling with you should be enough if you have documents covering your trip. Itβs accepted that spouses sometimes travel together on business trips.
You should walk up to the immigration officer together, as a family. Unless you have other immigration issues you have not mentioned, there should not be a problem.