Change text in Select Option

Hi,

I’m tying to change the text in the selector from “Please choose a Option” to “Choose an Option”

How should I do it? Using java, query? I tried it with php but it didn’t work.

My website: https://www.batzeli.com/shop/4pcs-6pcs-orange-skin-remover/
Theme: Storefront/Woocommerce

Thanks for your help

The page I need help with: [log in to see the link]