Given $f\left(t\right)=3^{2t-1}$, which correctly identifies the base and the exponent expression?

• A. Base: $3^{2t}$ Exponent: $-1$
• B. Base: $3$ Exponent: $2t$
• C. Base: $2t-1$ Exponent: $3$
• D. Base: $3$ Exponent: $2t-1$

Answer: (D)