Which one of the following devices is more likely to have support for 3x3:3 radios and 256 QAM?

Which one of the following devices is more likely to have support for 3×3:3 radios and 256 QAM?

You are planning for client devices in a WLAN that is be upgraded to 802.11ac.

Which one of the following devices is more likely to have support for 3×3:3 radios and 256 QAM?
A . handheld scanner
B . tablet
C . laptop
D . USB 2.0 adapter
E . mobile phone

Answer: C