(a) Geometric Series Test (d) nth-Term Test for Divergence (b) p-Series Test (e) None of these (c) Integral Test 27.jwhich test could be used to prove the divergence of Σ ( 1 + (c) nth-Term Test for Di (a) p-Series Test (d) Telescopic Series Test (b) Geometric Series Test (e) None of these 28. 2) 6 n=0 (e) None of these 29ã hich of the following converges?