Answer:
The solo instrument that will play the spectacular solo cadenza right before the tutti plays one more final ritornello will depend on which instruments have been chosen as soloists. If the soloists are a violinist, a cellist, and a flutist, then the flutist would be best suited to play the solo cadenza. Depending on the style of music and instruments chosen, any of the soloists could be chosen to play the cadenza. The tutti section should consist of a combination of orchestral instruments such as strings, winds, brass, and percussion.