a queue ticket calling system using STM$32$ development board. A push button is used as the input to the embedded system to increase the number of the queue ticket for next customer$\mathrm{.}3$ Common$-$anode $7-$segments are used to display the current ticket number.After the system in is developed, you discovered a weird behavior where the ticket number increases multiple times even though the push button is pressed once. Figure Q $1($b$)$ illustrates the signal captured from oscilloscope on the push button when it is pressed.$($i$)$ Discuss what is the the problem. $[5$ marks$]($ii$)$ Suggest TWO $(2)$ methods to overcome the problem.