Determine the Null and Alternative Hypotheses for the Study That $\mathrm { H } _ { 0 }$

Determine the null and alternative hypotheses for the study that produced the data in the table.
-A researcher performed a study to determine whether an association exists between retirement age and career. she obtained the following sample data.

A) $\mathrm { H } _ { 0 }$ : Age at retirement and career are independent.
$\mathrm { H } _ { \mathrm { a } }$ : There is no relationship between age at retirement and career.
B) $\mathrm { H } _ { 0 }$ : There is some relationship between age at retirement and career.
$\mathrm { H } _ { \mathrm { a } }$ : Age at retirement and career are independent.
C) $\mathrm { H } _ { 0 }$ : Age at retirement and career are independent.
$\mathrm { H } _ { \mathrm { a } }$ : There is some relationship between age at retirement and career.
D) $\mathrm { H } _ { 0 }$ : There is some relationship between age at retirement and career.
$\mathrm { H } _ { \mathrm { a } }$ : Age at retirement and career are not independent.