$\begin {array} {1 1} (a)\; Both\: the\: statements\: are\: true.\: Statement\: 2 \: is \: a \: correct \: explanation\: of\: statement\: 1 \\ (b)\;Both\: the\: statements\: are\: true.\: Statement\: 2 \: is \: not \: a \: correct \: explanation\: of\: statement\: 1 \\ (c)\;Statement\: 1 \: is\: true,\: statement \: 2 \: is\: false \\ (d)\;Statement\: 2 \: is\: true,\: statement \: 1 \: is\: false \end {array}$