XPath to click on dynamic combo box

I need to click in the drop-down and select a value. The drop-down is dynamic.

Below is the image of UI showing the dropdown.

Need an XPath for clicking on the drop-down.

Can some help in this regard?

Below is the HML code

<div class="x-field x-form-item x-form-item-default x-form-type-text x-box-item x-toolbar-item x-field-default x-hbox-form-item x-form-item-no-label" style="width: 300px; left: 54px; top: 6px; margin: 0px;" role="presentation" id="combo-1101"><label id="combo-1101-labelEl" data-ref="labelEl" class="x-form-item-label x-form-item-label-default x-unselectable" style="padding-right:5px;width:105px;" for="combo-1101-inputEl"><span class="x-form-item-label-inner x-form-item-label-inner-default" style="width:100px"><span id="combo-1101-labelTextEl" data-ref="labelTextEl" class="x-form-item-label-text"></span></span></label><div id="combo-1101-bodyEl" data-ref="bodyEl" role="presentation" class="x-form-item-body x-form-item-body-default x-form-text-field-body x-form-text-field-body-default "><div id="combo-1101-triggerWrap" data-ref="triggerWrap" role="presentation" class="x-form-trigger-wrap x-form-trigger-wrap-default"><div id="combo-1101-inputWrap" data-ref="inputWrap" role="presentation" class="x-form-text-wrap x-form-text-wrap-default"><input id="combo-1101-inputEl" data-ref="inputEl" type="text" size="1" name="combo-1101-inputEl" aria-hidden="false" aria-disabled="false" role="combobox" aria-haspopup="true" aria-expanded="false" aria-owns="combo-1101-inputEl combo-1101-picker-listEl" aria-autocomplete="list" aria-invalid="false" aria-readonly="false" aria-describedby="combo-1101-ariaStatusEl" aria-required="false" class="x-form-field x-form-text x-form-text-default " autocomplete="off" data-componentid="combo-1101"></div><div id="combo-1101-trigger-picker" class="x-form-trigger x-form-trigger-default x-form-arrow-trigger x-form-arrow-trigger-default " role="presentation"></div></div><span id="combo-1101-ariaStatusEl" data-ref="ariaStatusEl" aria-hidden="true" class="x-hidden-offsets"></span><span id="combo-1101-ariaErrorEl" data-ref="ariaErrorEl" aria-hidden="true" aria-live="assertive" class="x-hidden-clip"></span></div></div>