In these questions, each sentence has four underlined portions marked A, B, C and D. Choose that portion which must be changed so that the sentence becomes correct.
The ways of communication (A) / has (B) /changed dramatically (C) / since (D) / the last century.
Gandhiji lived a noble life of fasting (A) / and poverty (B) / in order to work for peaceful (C) / and independence (D)
The first year of child's life is (A) / characterised (B) / in (C) / rapid physical (D) / growth.
In each of these questions, an idiomatic expression is given. Choose the correct choice which expresses the meaning to the given expression from the four options (a), (b), (c) and (d).