$2.$ Which index should Reid use as a benchmark when evaluating the performance of his mutual fund?

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Index $1$

Index $2$

Index $3$

Index $4$

Beta

$0\mathrm{.}56$

$0\mathrm{.}96$

$1\mathrm{.}56$

$0\mathrm{.}75$

r$-$squared

$0\mathrm{.}65$

$0\mathrm{.}83$

$0\mathrm{.}74$

$0\mathrm{.}98$

a$.$ Index $1.$

b$.$ Index $2.$

c$.$ Index $3.$

d$.$ Index $4.$