1.

\left. \begin{array} { l } { \text { Solution of } | 3 x - 2 | \geq 1 \text { is } } \\ { ( a ) [ 1 / 3,1 ] } \\ { ( c ) \{ 1 / 3,1 \} } & { ( d ) ( - \infty , 1 / 3 ] \cup [ 1 , \infty ) } \end{array} \right.

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