On STM$32$L$4,$ a general$-$purpose timer has one counter, one ARR, but four CCRs $($i$.$e$.,$ each

timer has four output channels, with one dedicated CCR for each channel$).$ Which of the

following statement is FALSE?

a$.$ Each timer can generate four outputs. However, these timer outputs have the same

period.

b$.$ These four outputs can be left$-$edge$-$aligned, center$-$aligned, and right$-$edge$-$aligned,

determined by the timer counting mode and the timer output mode.

c$.$ The output polarity $($active high or active low$)$ of each channel can be independently

programmed.

d$.$ Each timer channel has its own dedicated interrupt handler