An effective way to signal a contrast within a sentence is to use a signal word, such as (a) also. (b) same. (c) similarly. (d) however.

Hello there!

The correct answer would be (d) however.

Here is an example:

Zebra´s actually don´t have stripes, however the tiger does.

As you can see above the Zebra is compared to the tiger.

Hope this helps!

the correct answer is:   [c]:

                    →     " leave it out. "  

hope this is to you!

        best wishes!