Question 934369
Investment A 
{{{Effective Annual Yield =((1+r/n)^n-1)(100)}}}
{{{Effective Annual Yield =((1+.05/12)^12-1)(100)}}}
{{{Effective Annual Yield =5.11}}}

Investment B
{{{Effective Annual Yield =((1+r/n)^n-1)(100)}}}
{{{Effective Annual Yield =((1+.049/360)^360-1)(100)}}}
{{{Effective Annual Yield =5.02}}}

Investment C
{{{Effective Annual Yield = (e^r-1)(100)}}}
{{{Effective Annual Yield = (e^.0485-1)(100)}}}
{{{Effective Annual Yield = 4.97}}}

Investment A has the best term.