Which item(s) would be sufficient to make a circuit? a. conductor b. insulator c. conductor and battery d. insulator and battery e. battery

C. conductor and battery

Explanation:

An electrical circuit is the part in which two or more conductors are joined in series , parallel or in mixed grouping such that when they are connected to a battery then some current will flow through it.

So here we can say that in order to make a complete circuit we need to take care that current will flow through the combination which will make a circuit

In order to flow the current we need an energy source which is done by the battery and other is the conductor which help to flow the the charge particles.

So here correct answer will be

C. conductor and battery

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.