A) As materials in EVs rely on natural resource mining, the sourcing issues will worsen in the future. The rarest and most expensive material is cobalt. EV manufacturers like Nissan started making batteries without cobalt to avoid sourcing issues. Other manufacturers following that can solve the problem. As far as other materials go, like lithium, there is an oversupply currently, and efforts are underway to generate new sources in different countries. That should solve the sourcing issues of these materials for at least a few decades going forward.