Here are the words with different sounds in the underlined parts:

1. **A. row** (sounds like "oh") - **D. cow** (sounds like "ow")
2. **A. pear** (sounds like "air") - **B. bear** (sounds like "air") - **C. wear** (sounds like "air") - **D. eager** (sounds like "ee")
3. **B. so** (sounds like "oh") - **C. do** (sounds like "oo")
4. **A. care** (sounds like "air") - **B. package** (sounds like "a") - **C. rare** (sounds like "air")
5. **A. around** (sounds like "ow") - **C. loud** (sounds like "ow")

The words with different sounds are:
1. D. cow
2. D. eager
3. No clear outlier
4. B. package
5. The rest sound similar, but C. loud is a different vowel sound.

In summary, the different sounds are in rows 1, 2, and 4 as discussed.