Answer:
It gives a way of allowing a child to have hands on learning
Explanation:
this will help to keep the child entertained
Perforated <span>type of tray allows impression material to mechanically lock on.</span>
B would be the most obvious option.
T-test is a principally a test of agility
In T-test you participant is required to run across 4 points that formed a huge Letter T, at which his time will be measured between set points