Question: Which concept that was similar to  Type 2 Ho-I was developed in the late  1930s?
Sentence (from "Type 2 Ho-I"): The Type 2 Gun tank Ho-I (二式砲戦車 ホイ , Ni-shiki hōsensha Ho-I ) Support Tank was a derivative of the Type 97 Chi-Ha medium tanks of the Imperial Japanese Army in World War II.
Relevant evidence: No