What may be the possible code for ‘demand only more’ in the given code language?

From first and second statements, the only common word is 'economics' coded as 'ka'

Now, from second and fourth statements, there are three common words demand, supply and economics.

Thus, we can get the codes for 'and' - 'pa' & 'makes' - 'zi'

Since, we already know the code for economics, now we are left with two choices, i.e. codes for 'demand' or 'supply' can be 'mo' or 'ta'.

Thus, demand can be coded as either 'mo' or 'ta'

From first and third, money can be coded as 'la'

=> from third, only can be coded as 'ne or 'ki'

The word more is not used in these statements, so a new code word will be used for it.

Now, to find the code for 'demand only more', we need to find an option that contains either 'mo' or 'ta' and either 'ne' or 'ki' and a new code which is not used in the above statements.

Thus, Ans - (A)