Pick out the true statements: a) ifthe seriesa, andb, are convergent, then2a,b, is also convergent. () if the series ,, is convergent and if ,b, is absolutely c

Pick out the true statements: a) Ifthe seriesa, andb, are convergent, then2a,b, is also convergent. () If the series ,, is convergent and if ,b, is absolutely convergent, then 2, 4,b, is absolutely convergent. c) Ifthe sericsa, is convergent, a, 20 for all n, and if'the sequcnce {b,} is bounded, then ,h, is absolutely convergent. INBHM-2008| a insaluthat the seauence is Cauchv