You are developing a customer web form that includes the following HTML input field.
<input id="txtValue"/>
If a customer enters a value in the input field, then it must be a numeric value.
You need to add validation to the input field.
Which HTML should you use?
A. <input id="txtValue" type-"text" pattern="/#" />
B. <input id="txtValue" type="number" />
C. <input id="txtVa!ue" type="integer" />
D. <input id="txtValue" type="text" required="required"/>
