If SSRequals120, why is it impossible for SST to equal 110? Question content area bottom Part 1 Choose the correct answer below. A. It is impossible because SSTequals2(SSR). B. It is impossible because SSEequalsSSRplusSST and a sum of squares cannot be negative. C. It is impossible because SSTequalsSSRplusSSE and a sum of squares cannot be negative. D. It is impossible because SST cannot be less than minus100 or greater than 100