The answer is B, sameness
I am pretty sure that a point mutation that creates a premature stop codon is called a synonymous mutation. It also can be called silent mutation, if you have it in you option list, feel free to use it, it is the same. That will definitely help you.
The correct answer is - d. large paws.
The animals in the taiga biome have special adaptations in order to be able to live in this cruel environment, and of their trademarks are the large paws. Because for most of the year the taiga is covered with ice and snow, the animals developed large paws so that the pressure from their body weight can be more evenly distributed so that they can move freely through the snow and sink their legs deep into it. Also, the size of the paws enables for more hair to grow between their toes, as well as to develop an extra layer, and that is with the purpose of avoiding the freezing of their legs.