A sequential machine's outputs depend on

a$.$current values of the inputs as well as the present state.

b$.$current, as well as past, inputs $($i$.$e$.$ the input string to date$).$

c$.$present state and present input.

d$.$all of the above.

FPGAs and CPGAs are

a$.$SSI devices.

b$.$MSI devices

c$.$LSI devices.

d$.$VLSI devices.

Registers and counters are

a$.$SSI devices.

b$.$MSI devices.

c$.$LSI devices.

d$.$VLSI devices.

Multiplexers and decoders are

a$.$SSI devices.

b$.$MSI devices.

c$.$LSI devices.

d$.$VLSI devices.