The symbol hfe is the same as:

• A. <img src="/_files/images/basic-electronics/complete/mca12_1001a1.gif" alt="mca12_1001a1.gif" align="absmiddle">
• B. <img src="/_files/images/basic-electronics/complete/mca12_1001b1.gif" alt="mca12_1001b1.gif" align="absmiddle">
• C. hi-fi
• D. <img src="/_files/images/basic-electronics/complete/mca12_1001d1.gif" alt="mca12_1001d1.gif" align="absmiddle">