$,$Given an $8086$ based system with following specifications

$.$CPU clock is $5MHz$ in minimum mode operation $-$

Using $32KB$ SRAM devices to implement $128KB$ SRAM at starting address $00000H-$

Using $32KB$ EPROM devices to implement $64KB$ EPROM ends at the upper address FFFFFH $-$

$-$:Answer the following questions

a$)$ The used crystal oscillator frequency is

$\backslash$table$[[5MHz$