An object attached to an ideal massless spring is pulled across a frictionless surface. If the spring constant is $45\frac{N}{m}$ and the spring stretches $0\mathrm{.}88$ m when the object accelerates at $2\mathrm{.}0\frac{m}{s^2},$ what is the mass of the object?

The a$.20$ kg $.$

$$ b$.15$ kg $.$

c$.22$ kg $.$

Oh d$.17$ kg $.$

The e$.26$ kg $.$