小北的身高是 1.65 米。班上有 n 个小朋友，小北想和身高最接近自己的人交朋友。如果有多个小朋友 与小北的身高差相同，小北想和其中身高较矮的第一个小朋友做朋友。横线处应该填入的是（ ）。

int  n,  i;
float  target,   h, best_height,    min_diff,   diff;

cout  <<  "请输入小朋友的人数: ";
cin  >>  n;
target   = 1.65;
best_height   =  0.0;
min_diff   = 100.0;

for (i   = 0; i  < n;  i++) {
    cout   << "请输入第 "      <<  i <<  " 个小朋友的身高: ";
    cin   >> h;
    diff   = abs(h  -  target);

    if (____________________) {       // L1
        min_diff    =  diff;
        best_height     = h;
    }
}
cout  <<  "小北的朋友身高为: "         <<  best_height;

{{ select(1) }}

• diff < min_diff || (diff == min_diff && h < best_height)
• diff <= min_diff && h < best_height
• diff < min_diff && h < best_height
• diff < min_diff || h < best_height