Alarge conical mound of sand with a diameter of 45 ft and height of 15 ft is being stored as a key raw ingredient for products at your glass manufacturing company. what is the approximate value of the mound?

The answer is word SIMULTANEOUSLY.

Step-by-step explanation:

The alternative that fits best is " d.Simultaneously"

All at once, pandemonium broke loose. Simultaneously, the marching band came around the corner, dogs began barking, the horses pulling the Mayors carriage began to run.

This word maintains the coherence and cohesion of the given text.