b. Identical twins raised in different environments will be the most alike.
Identical twins can be described as a type of twins that are genetically identical. As these twins arise from the same egg, hence their genes are similar.
Due to their whole genome being identical to each other, identical twins are most likely to be lost alike because they share the same genome. The genome of an individual plays a major role along with the environment to shape an organism. Hence, those individuals that have the entire same gene sequence will be more similar to each other.
The different environments may play a factor in bringing separate qualities in identical twins, however, they will still be more alike when compared to fraternal twins or other siblings.
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