What does the following code do?
txtMonthlyInvestment.Focus();
a. calls the Focus method of the txtMonthlyInvestment control
b. calls the () method of the txtMonthlyInvestment.Focus control
c. calls the txtMonthlyInvestment method of the Focus control
d. calls the Focus method of the current form instance
Answer: a. calls the Focus method of the txtMonthlyInvestment control
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