How to resolve condition coverage for following in angular unit testing

Question

I need to write the angular unit test case for following function

 public isCompletedPlan = (plan: TaxOptimizedStrategy): boolean =>
 plan?.withdrawalOrderRecommendations?.length > 0 &&
 plan?.wealthMetrics?.length > 0 &&
 plan?.alphaMetrics?.length > 0;

if I remove the ? marks, it will cover the conditions and my unit test case is like,

let plan = { some values }
it('should be create', () => {
expect(service).toBeTruthy();
 service.isCompletedPlan(plan);
 expect(plan.withdrawalOrderRecommendations.length > 0 && plan.wealthMetrics.length> 0 && 
 plan.alphaMetrics.length> 0).toBe(true);
});