Here are some words translated from an artificial language.
I. jalkamofti means happy birthday
II. moftihoze means birthday party
III. mentogunn means goodness

Which word could mean "happiness"?

Explanation:-

Jalka means happy;moftimeans birthday; hoze means party; mento means good; and gunn means the suffix –ness. We know the answer must include the suffix –ness. The only choice that uses that suffix is choice a.