What basis code is needed to define the JavaScript function avgGrades?

• A. Function avgGrades () {}
• B. avgGrades (){ }
• C. avgGrades function ()
• D. var = function avgGrades () {}

Joseph is designing a Web form for new patient enrollment in a doctor's office He wants to ensure that users enter valid information on the form He also wants to make sure that hackers cannot submit malicious code to gain access to information about other patients. What technique should he use?

• A. He should secure the Web pages through SSL (Secure Sockets Layer) certificates
• B. He should add the required attribute to the e-mail and phone fields on the form
• C. He should write regular expressions to check that the data values entered match the requirements
• D. He should write a script to compare the information the user entered with the information on the Internet that is publicly available about the user

Which of the following is a true statement regarding the relationship between Promises and callback functions?

• A. A Promise is used to monitor the value of a variable A callback retrieves the previous value of a variable.
• B. A Promise is an object a developer can use to pass callbacks to functions.
• C. A Promise cannot be used in conjunction with a callback.
• D. A Promise is a returned object to which the developer can attach callbacks instead of passing callbacks to a function.

Consider the following code:

The processform() function is not executed when the submit button is pressed. What change should be made to correct this?

• A. The onfocus event handler should be added to the <input type'' submit''> tag
• B. The onsubmit event handler should be added to the<form> tag.
• C. The onsubmit event handler should be added to the <input type='' submit''> tag.
• D. The onfocus event handler should be added to the <form> tag.

Consider the following code:

Which of the following is true based on the above code?

• A. The checktemp function will not run because it was called upon before it was defined
• B. fever = (temp > 98.7) ? "a fever": "no fever"; is not a valid statement
• C. The default value of 0 will be displayed when the page loads
• D. Entering 98.7 results in the statement. "You have no fever "