Answer: Most likely Company A
Step-by-step explanation:
Generally an increase in Capital Expenditure means that a company is investing more which would mean that revenue will increase in future which will give it a higher valuation.
However, sometimes this spending might just be on Maintenance of Capital assets. When this happens the company is given a lower valuation.
Plainly speaking therefore, if Company A has a higher growth rate in Capital Expenditure because they are investing which is likely to be the case, then they would be more valuable than Company B.