Answer:
B.
.
Step-by-step explanation:
Total number of marbles = 11.
Since, after choosing the first marble, we are putting it back and then the second marble is chosen.
As, there are 4 shaded marbles.
So, the probability of getting the first marble shaded =
= 
Also, there are 6 odd labeled marbles.
So, the probability of getting the second marble being odd labeled =
= 
So, the probability of getting the first marble shaded and second marble labeled odd =
=
.
Hence, the required probability is
.