Hello Lilahgodess!
In the English language there are 3 types of word parts or morphemes. These refer to the parts of a word made up of units of meaning. The 3 types of word parts are :
In the words given above, we need to select a word which shares a same word part with 'impetous'.
By observing the words, we can see that the word 'adventorous' shares the same suffix (ous) as 'impetous'.
The other words (irrational & translucent) don't share same word parts with 'impetuous'.
The correct answer is option A. adventurous.
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[tex]\mathfrak{Lucazz}[/tex]