Most appropriate answer for field experiment would be "<span>observing changes in the nesting behavior of wood ducks "
In short, Your Answer would be Option A
Hope I helped.</span>
It gives the characteristic trait of the organisms that can be good or bad to the survival of it environment. But to go into depth as each organisms die and the survival of each one reproduce it will come out as a natural selected to the survival of the environment aka Survival of the Fittest. :)
<span>one of the similarities between monohybrid crosses and dihybrid crosses is : both crosses show the probability of traits the offspring can have.
Not only that, it helps finding out which alleles are resessive and which alleles are on the dominant type</span>