TPS60120: TPS60120 GND layout

Tool/software:

Hi~.

Ask how to connect Cin gnd and IC GND effectively for EMI.

1. Which is effective for emi, connecting directly to the IC GND pin as shown in "data sheet Figure 8-13" or connecting to GND copper as shown in "ek Figure 4-1"?

2. If CIN pin1 (VCC) position is the same,

1) If GND COPPER is closer than IC GND, is it effective for emi to connect to GND COPPER?

Thanks.