Which of the following statements is correct regarding uncommercial activities?

$(1)0$:$25$:$49$

Which of the following statements is correct regarding uncommercial activities?

a$.$ Primary producers with small amounts of income are automatically uncommerci$$l activities.

b$.$ Division $35$ now sets a number of tests, one of which must be satisfied in order for a business to qualify as an actual business which is eligible for business deductions.

c$.$ Negative gearing on commercial property is considered to be an uncommercial activity and disallowed.

d$.$ An artist or performer earning small amounts of income is determined under Div $35$ to be engaged in an uncommercial activity.