Question $3$: rdt$2.2$ protocol

Consider the rdt$2\mathrm{.}2$ protocol. The FSMs for the sender and receiver are shown below:

Consider the given time diagram below, which shows communication between sender and receiver using rdt$2\mathrm{.}2$ protocol. The packet corruptions or ack corruption is indicated with a dashed line $($as it is done in the lectures$).$ What is the state of sender at $\backslash ($ t$=0\backslash )?$ What is the state of receiver at $\backslash ($ t$=5\backslash )?$ what is the value of $\backslash ($ d $\backslash )?$ what is the value of $\backslash ($ c $\backslash )?$