[单选题]
What is the frequenc 7r. wcpu+rp u2jyqv +(j.cqi3y lo9q:7ge cet0of the most intense radiation from an object with temperatulqc:79egt eo0 re $100 ^{\circ}C$?
A. $2.9 \times 10^{-5} \; Hz$
B. $3.9 \times 10^{13} \; Hz$
C. $1.0 \times 10^{13} \; Hz$
D. $1.0 \times 10^{11} \; Hz$