Let $L=\{\begin{array}{ccc}\text{w}\text{i}\text{n}& \{a,& b{\}}^{**}|\text{\#}{?}_a(w)\end{array}$ is odd & #${?}_b(w)$ is odd

Please include:

$-$a complete DFA This includes a digram with correct states and transition arrows

$-$a well done explanation and demostration of b$.$ so I can also understand what is happening

I HAVE ASKED THIS QUESTION SERVERAL TIMES AND RECIEVED INCORRECT ANSWERS. PLEASE PROVIDE ALL INFO FOR UPVOTE