Suppose You Want to Verify That the User Has Entered

question 18

Multiple Choice

Suppose you want to verify that the user has entered a value into a text box named txtInput. Which of the following code segments responds with an appropriate message if the user does not enter a value?

• A) If txtInput.text < > "" Then
• lblStatus.Text = "No data has been entered"
• End If
• B) If txtInput.Text = " " Then
• lblStatus.Text = "No data has been entered"
• End If
• C) If txtInput < > String.Empty Then
• lblStatus.Text = "No data has been entered"
• End If
• D) If txtInput.Text = String.Empty Then
• lblStatus.Text = "No data has been entered"
• End If

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Definitions:

Inherited Condition

A health condition or trait that is passed from parents to their offspring through genes.

Maternal Determinants

Substances, such as proteins or RNAs, located in the egg cytoplasm, provided by the mother, that influence the early development of the embryo.

Mitosis

A process of cell division in eukaryotic cells that results in two genetically identical daughter cells from a single parent cell.

Cytoplasmic Segregation

Process that parcels out the maternal determinants, which play a role in development, during mitosis.