Answer:
not approved by a union
Step-by-step explanation:
It is TRUE that the wildcat strike by employees of the Pullman Company in 1894 was not approved by a union.
This is evident in the fact that when the United States government waded into the issue of strike, they forced the American Railway Union to call off the strike as there are majority of Union leaders that were not in support of the strike.
The strike only lasted between May 1894 to mid of July 1894.
Hence, in this case, the correct answer to the question is that the strike was not approved by the Union leaders.