ACCorDing to thE ContExt, thE sEntEnCE "But young ACtors with thE stAgE in thEir BlooD ArE hAppy, "At thE EnD oF thE First pArAgrAph mEAns ______.
A．thEy Don't CArE iF thEir joB is hArD
B．thEy likE thE stAgE nAturAlly
C．thEy ArE Born hAppy
D．thEy ArE EAsily sAtisFiED