I what is the concept/ idea behind
the "john Bull printing child's toy?

It is famous printing press for printing toddler or kids toys. It deals in education related toys too.

Explanation:

John Bull Printing Child Toys is a famous printing press. It is well known for printing Childs toy on t-shirts, shirts, pants, etc. It is known for this concepts. The main purpose of this concepts is to remembers the childhood days. It prints classical childhood toys .

The toys are made up of your childhood fun. But they prints these toys on cardboard, clothes in style. It is the best seller in babies and toddlers toy. They even print toys that is related to education such as numbers, sequence of the letters, colors etc. It includes voice synthesizer as well as circuit.

i really really really really really really dont know

the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.