Read the following case and answer the following questions:
 
During a Science activity on measurement of time, a group of students carefully observed the wall clock. The clock has three hands: the hour hand, minute hand, and second hand. The students noticed that the second hand moves from one marked second to the next and that the clock face is divided into \(60\) equal divisions.

Their teacher asked them to determine the smallest time interval that can be measured directly using this wall clock. The students discussed whether they could use the clock to measure intervals smaller than one second and whether the hour and minute hands could provide the same precision as the second hand.

Based on their observations, answer the following questions.
 
1. The clock face is divided into \(60\) equal divisions. Since the second hand completes one full revolution in \(60\ seconds\), what time interval does each division represent?
 
2. Two clocks are available:

Clock \(A\): Its smallest division is \(1\ minute\).
Clock \(B\): Its smallest division is \(1\ second\).

A student needs to measure an interval of \(12\ seconds\). Which clock should be selected?