(c)
For the purposes of section
1475
(a)(3) of this title, the Secretary concerned shall determine whether the decedent was authorized or required to perform the duty or training and whether or not he died from injury so incurred. For the purposes of section
1476 of this title, the Secretary of Veterans Affairs shall make those determinations. In making those determinations, the Secretary concerned or the Secretary of Veterans Affairs, as the case may be, shall consider—
(1)
the hour on which the Reserve began to travel directly to or from the duty or training;
(2)
the hour at which he was scheduled to arrive for, or at which he ceased performing, that duty or training;
(3)
the method of travel used;
(5)
the manner in which the travel was performed; and
(6)
the immediate cause of death.
In cases covered by this subsection, the burden of proof is on the claimant.