Ack! Your nematode cultures are infested with a pesky, but novel bacterium! You decide to grow nematodes on either normal bacteria or the new novel bacteria. After 10 generations, you attempt mating...

A- the two nematode populations have undergone complete speciation B-  individuals reared on different bacteria produce offspring that have a better chance of survival C- The populations appear to be most likely in the process of speciation D- all individuals were equally reproductively successful regardless of mate combination

Extracted text: Ack! Your nematode cultures are infested with a pesky, but novel bacterium! You decide to grow nematodes on either normal bacteria or the new novel bacteria. After 10 generations, you attempt mating trials between the two populations. Below are the results of your breeding experiments. The numbers within each box represent the number of offspring produced in the cross. Which of the following is the most appropriate conclusion from your results? Female nematodes reared on... Normal bacteria Novel bacteria Normal 290 153 bacteria Male nematodes reared on... Novel bacteria 149 312