Here are the words with the underlined parts that are pronounced differently from each other:

1. **c. imagine** - The "ge" in "imagine" is pronounced /dʒ/, while in "genre" (zh), "danger" (j), and "giant" (j) it is pronounced as /dʒ/ or /ʤ/.

2. **a. gene** - The "ge" in "gene" is pronounced /dʒ/, while in "education" (j), "dentist" (d), and "pleasure" (zh) it varies.

3. **a. station** - The "tion" in "station" is pronounced as /ʃən/, whereas "information", "equation", and "destination" all have the /ʃən/ sound as well, but the key point is that there's no different pronunciation in the "tion" for these words.

4. **c. creature** - The "ea" in "creature" is pronounced as /iː/, while "jacket" (æ), "badge" (æ), and "July" (aɪ) have different sounds.

5. **c. cheap** - The "ch" in "cheap" is pronounced /tʃ/, while "picture" (k), "literature" (tʃ), and "college" (k) maintain different sounds.

So the answers are:
1. c. imagine
2. a. gene
3. a. station
4. c. creature
5. c. cheap