Determine Whether the Statement Is True or False $A = \{ 1,3,5,7 \}$

True/False

Determine whether the statement is true or false.
Let $A = \{ 1,3,5,7 \}$
$\begin{array} { l } B = \{ 5,6,7,8 \} \\C = \{ 5,8 \} \\D = \{ 2,5,8 \} \\U = \{ 1,2,3,4,5,6,7,8 \}\end{array}$
- $\phi \subseteq \mathrm { A }$