इनमें से किस शब्द में 'अक' प्रत्यय नहीं है?

Select the correct prefix/suffix to change the form of the given word. 

Neat

Select the correct prefix/suffix to change the form of the given word. 

Noble

Select the correct prefix/suffix to change the form of the given word. 

Natural 

Instruction: Choose the alternative which is an Adjective formed by adding a Suffix. 

Hero 

Instruction: Choose the alternative which is an Adjective formed by adding a Suffix. 

Caution 

Which one of the following suffixes can be added to the word below to form a new word:
 Infant

Select the appropriate suffix for 'violin'.