Select which combination of the actions stated below are all correct as examples of sustainability for businesses.

$(1)$ Recycling and eliminating waste.

$(2)$ Saving costs by cutting spending on safety equipment.

$(3)$ Converting harmful gases into clean energy.

$(4)$ Approving salary increases only for management and not for other employees.

$($a$)$ Statements $(1),(2)$ and $(3)$

$($b$)$ Statements $(1),(2)$ and $(4)$

$($c$)$ Statements $(1),(3)$ and $(4)$

$($d$)$ Statements $(1),$ and $(3)$

Select one:

a$.$

Statements $(1),$ and $(3)$

b$.$

Statements $(1),(2)$ and $(4)$

c$.$

Statements $(1),(3)$ and $(4)$

d$.$

Statements $(1),(2)$ and $(3)$